Consumer Advocacy
What you need to know
Dishwashers
  • Dishwashers are more environmentally friendly and energy-efficient than handwashing
  • Dishwashers can sanitize and kill 99.9 percent of bacteria that would otherwise flourish in regular sponges
  • Prioritize appliances with NSF and Energy Star certifications as well as stainless-steel interiors
  • Prices will vary per retailer, season, and promotion
Our Approach

How we analyzed the best Dishwashers

Quality
Exterior finish, handle choice, and the controls' location are amongst the most important design components. In terms of build, tub material and storage capacity are key.
Performance
Besides general job performance, our team gave higher ratings to quieter dishwashers and models with NSR and Energy Star certifications.
Warranty
1-year warranties are pretty standard across manufacturers. We gave extra points to companies offering longer guarantees on component parts.
119 People found this helpful.
We receive compensation from these partners, which impacts the order they appear on the page. That said, the analyses and opinions on our site are our own and we believe in editorial integrity.

Our Top Picks: Dishwashers Reviews

Getting a dishwasher seems like an expensive solution for an individual who does not have the time or energy to do dishes manually. These appliances had a bad reputation for excessive energy usage, overuse of water, and noisiness in the past. Modern models are different, and the consensus is that these appliances are a sensible purchase, especially for large households and families. Units are quieter and more efficient than previous generations, and even more environmentally friendly than hand-washing.

Energy Star-certified machines can lower utility bills, save time and water, and clean and sanitize in ways that hand-washing simply can’t. However, people who live alone and only clean a few dishes at a time might not see significant savings from purchasing a dishwasher, especially if they hand-wash in an eco-friendly way. 

The biggest drawback for dishwashers is the upfront cost and potential installation expenses. The best models can cost $500 or more. There are affordable appliances available between $300 and $400, but many do not come with essential certifications and are built with more plastic components that can impact performance. 

Our top picks range from affordable to luxury, and we made sure to include cost-efficient and environmentally friendly models from reputable manufacturers. We listed the price for each model as shown on the brand’s website (if they were not listed, we looked at the prices from Lowe’s or The Home Depot) but bear in mind that these might still vary from retailer to retailer. 

Bosch review

Best Overall 

Screenshot Bosch-home.com, November 2020

  • NSF certified
  • Energy Star Certified
  • $849.00

Bosch dishwashers are widely regarded as the best models in terms of reliability, performance, as well as some of the quietest in the market. The 800 series includes Boschs’ top-of-the-line luxury units, but we selected the entry-level SHEM63W55N 300 for its loading versatility, quietness, and washing performance at a more reasonable price point. 

This model's exterior features a stainless steel finish, front push-button controls, and a pocket handle. Users can load up to 16 place settings and take advantage of the three loading racks. The upper third rack is the slimmest, with added space for utensils and cutlery, while the middle and lower rack can fit items like pots, pans, bowls, and cups. The middle rack includes side supports designed to hold cups and stemware glasses and three adjustable height levels to create more space as needed. Both the middle and lower rack have fold-down tines that can be raised or hidden away, meaning you can customize the rack’s loading design to best accommodate the items, be it flat dishes, cups, or large cookware. 

There are five wash cycles to choose from (heavy, auto, normal, speed60, and rinse), and there are four cycle options available: delay start, half load, sanitize, and extra dry, which extends the cycle and further raises the water temperature at the end of it. The water temperature rises at the end of the cycle to encourage fast evaporation and condensation (the extra dry option is an enhanced version of this process). The water droplets are then drawn to the stainless steel walls and drained. One additional feature on this unit is an electronic valve that shuts off the water supply if it detects a leak, redirecting the excess water to the dishwasher base, where it drains out automatically, so there is no risk of damage to the appliance or the floor around it.

Bosch’s warranty offers coverage for cosmetic defects up to 30 days after the date of purchase. The one-year warranty includes repairs, replacements, parts, and labor. The upper and lower dishrack, microprocessor, and printed circuit board have five-year coverage, but parts are not included. A lifetime warranty applies to the stainless steel inner liner if it suffers rust-through damage.  

KitchenAid review

Best luxury model

Screenshot Kitchenaid.com, November 2020

  • NSF Certified
  • Energy Star certified.
  • $1,199.00

The KitchenAid KDTM604KPS ranked as our best luxury dishwasher due to its storage capacity, versatility, filtration system, and washing and drying performance. Its exterior design is very sleek and streamlined, with the controls hidden away on the top edge of the door and a simple towel bar handle on the front. In terms of performance, a standout feature is a micro-filtration system designed to continuously filter food particles so that the re-used water is always clean when it hits the dishes. This filtration system is low maintenance and does not need to be removed and cleaned, like most other units. The only component that may need to be emptied from time to time is a removable cap on the filter’s exterior that can catch some debris. 

Wash arms for all three storage levels improve washing performance. There are two wash arms for the lower and middle rack each, and rotating wash jets are integrated into the upper third rack so that during each cycle, water sprays aim directly at all three racks. Drying performance is also versatile, with three options to choose from depending on your preferences: 1)the heating element, 2) extended heated dry, or 3) the eco-friendly ProDry option that employs both an integrated fan the heating element. 

Storage capacity and loading versatility is a standout feature on this unit. The upper third rack can store much more than just cutlery and utensils. It has a deep, angled side that can comfortably fit 6” glasses, mugs, and even bowls. There are rotating wash jets directly under the tray that ensure thorough cleaning of these items. A removable utensil tray can be fitted if needed, and you can fit up to 14 place settings. The middle rack height is adjustable, including foldable tines and spray nozzles that work ideally for cleaning bottles and other tall items. 

Noise level is very quiet, with a 44dBa. There are five wash cycles, including an automated ProWash process that selects the best wash settings for that load and makes automatic adjustments from start to finish. This unit features seven wash cycles, including a wash that directs water towards the top two racks only, a suitable option for small loads.

KitchenAid’s warranty is the only one on our list covering repairs, replacement, parts, and labor for up to two years. After that initial coverage expires, the warranty also extends five-year coverage to the nylon dish racks and the electronic controls and a lifetime warranty for the stainless steel tub and inner door liner. 

General Electric review

Best mid-range model

Screenshot GEappliances.com, November 2020

  • NSF certified
  • Energy Star certified
  • $598.00 Home Depot

Our pick from GE is an excellent middle of the road alternative pairing solid build with various wash cycle options and added features that enhance overall performance. The exterior design mirrors higher-end models, with a pocket handle and touch controls hidden away at the door's top edge. The unit keeps the noise level at 46 dBa and includes a stainless steel tub and inner lining. Storage capacity is also versatile, with a removable third rack, adjustable middle rack, and fold-down tines on the lowest part. The lower rack also has additional washing features that come in handy for washing baby bottles, sports bottles, or tall cups. Additionally, GE has integrated a hard food disposer, called Piranha Hard Food Disposer, that pulverizes large food particles to prevent them from clogging up the wash arms. The actual filter is removable and washable by hand. 

The five wash cycles are auto-sense, heavy, normal, light/china, rinse, and a 1-hour wash. The auto-sense cycle works by detecting soil levels and adjusts the water pressure, temperature, and cycle time accordingly. Cycle options are extensive, including delayed start and child lock controls, steam sanitization cycle, middle or lower rack wash only, and a bottle jet option that activates the lower rack’s water jets feature. 

GE also offers two drying alternatives: dry boost, which raises the temperature at the end of the cycle and circulates air, or dry boost high, an extended version of the regular dry boost. You can choose to turn the dry boost off completely, allowing the dishes to air dry naturally and consuming less energy. If choosing the latter, leave the door slightly open to let out all the steam. 

GE’s warranty for this unit is very minimal when compared to other manufacturers. It covers repairs, replacement, parts, and labor, but only for the first year. There is no additional coverage for components after the first year. The warranties on their high-end GE Profile line, however, are more comprehensive. 

Bosch Ascenta review

Best for Affordability

Screenshot Bosch-home.com, November 2020

  • NSF certified
  •  Energy Star certified. 
  • $499.00

Bosch Ascenta is our top pick for quality and affordability, given that it complies with key quality standards that are hard to find on units in this price range. With a stainless steel interior, this dishwasher follows Energy Star guidelines and an NSF-certified wash option. The exterior design includes a small pocket handle with front controls. DBA is set at 50, and although this can be considered loud by Bosch standards, this dBA level is still equal to just the humming sound of a refrigerator. There is a trade-off in terms of storage, and the capacity on this unit is a bit more limited than other models, fitting up to 14 place settings. Despite not having a third rack, the two available racks feature foldable tines, adjustable height on the upper, and a removable silverware and cutlery basket on the lower.  

The six wash cycles available are essentially the same as most models on this list:  heavy, auto, normal, delicate, express, and half load. However, GE limits cycle options to only two: sanitization and delayed start (the cycle can be set up to begin up to 24 hours later). There are no additional drying options either, but this model features Bosh’s improved drying system that takes advantage of condensation by raising the temperature at the end of the cycle. Since stainless steel cools down fast, the water droplets are drawn to the tub walls and drained away. Like the first Bosch model we reviewed, the heating element on this unit is hidden away, so there is no risk of heat damage to plastic items. 

Bosch’s warranty is one of the best in this price range, too. Coverage applies to replacement parts, repair, and labor for the first year on the entire appliance. The warranty will cover parts on the microprocessors, printed circuit board, and the upper or lower dish rack (labor excluded) for five years. Lastly, the stainless steel interior is covered against rust by a lifetime limited warranty. 

General Electric review

Best Portable 

Screenshot Geappliances.com, November 2020

  • NSF certified
  • Energy Star certified
  • $683.00 Home Depot

Portable dishwashers are an alternative for buyers who can’t install a built-in model in their kitchen. They are comparable to built-in models in almost everything, including size and capacity, but are built on rollers and operate by being temporarily connected to the sink faucet. These can be stored away when not in use, or they can double as a countertop extension for added space. 

The design on the General Electric GPT225SSLSS includes a stainless steel exterior, recessed handle door, and fully integrated controls at the top edge of the door. With a 54 dBA, it is a bit on the loud side compared to other models. Imagine the background humming of a running refrigerator. An integrated hard food disposer is partly responsible for this slight increase in noise, as it pulverizes large food particles during the cycle so that they do not clog up the sprayer arms. Storage capacity is limited to two racks, which can fit up to 12 place settings. The upper rack has an angled design that makes it easier to load oversized items below it, and the height can also be adjusted as needed. The bottom rack has space for larger items and a two-piece basket for cutlery and silverware. 

It combines a very minimal list of wash cycles (auto-sense, heavy wash, and light wash) with five available cycle options: wash temperature, boost, sanitize, delay start, and control lock. While there are not many washing enhancing mechanisms in place—additional jet spray—specific cycle options allow you to play with the water temperature and length of the cycle to tackle harder-to-clean dishes. 

For this line of dishwashers, GE offers a basic one-year limited warranty for parts, labor, repairs, or replacements. Unfortunately, the options for portable units that met our requirements were minimal, and none offered better warranty plans comparable to other competitors. 

Our Research

Further Insight Into Our Methodology

While it’s appealing to purchase a dishwasher just so it can take a tedious chore off your hands, if the model hikes up your energy bill, wastes more, and adds more noise to your home, it may not be the best trade-off. We prioritized quality, performance, and important certifications to find the best options at different price ranges. 

Starting around $300, lower-end models tend to have a higher noise level, fewer cycle and storage options, and most likely, a plastic tub instead of a stainless-steel one. In this price bracket, we found that Energy Star or NSF certified options are also sparse. On the other end, luxury models can go as high as $2,000 and tend to be top of the line in performance and construction, including the newest technological advances and automated features. 

Fortunately, we were able to find models that met our standards in the mid-range level, starting around $500, where there are also more options and variety, especially for customers committed to having a stainless-steel tub. Smart features such as Wi-Fi connectivity and appliance apps were not considered in this review. Instead, we focused on soil sensors or water sensors, which are available in many mid-range models and positively contribute to the appliance's efficiency and performance by measuring the level of soil and food residue in the water to adjust the water temperature and pressure accordingly. 


Quality

Finish

Across the board, dishwashers have a simple exterior design, and most models on the market look very similar. The standard offering is a stainless-steel finish, with some companies offering the option of black or white coated doors. For a higher price tag, brands such as Bosch and KitchenAid also offer “panel ready” models with a custom panel exterior so the appliance can seamlessly blend in with the rest of your kitchen cabinets. Ultimately, the choice for the exterior finish depends on your budget and how the appliance will mesh with the rest of your kitchen’s décor. 

Handle 

Since dishwashers are so similar visually, handles become a useful design element for manufacturers that want their units to stand out from the crowd. Despite sharing the same functionality, (i.e., to open the machine), each handle design has its pros and cons. Handles that protrude outward, such as towel bars or square bar handles, will be ideal for those who like to hang towels on the appliance. Recessed and pocket handles are a great option for customers who prefer a sleeker, streamlined look.

What's the advantage of hidden controls versus front controls?

The difference between the hidden and front control panels is largely aesthetic. Dishwashers with integrated controls can be more expensive but have a sleeker look. These models are a good choice for people with mobility issues since the controls are easy to see without bending down, and also families with children, as buttons are less likely to be accidentally pressed.

Having said that, dishwashers with front controls offer their own advantages. Controls are much more visible, making it easier to see the current cleaning cycle and how much time it has left. Additionally, these models tend to be more affordable than those with integrated controls.

Build

Size

Built-in dishwashers have a standard width (24 inches), depth (24 inches), and height (35 inches), and these measurements will fit most kitchens. We also included an 18-inch option for kitchens with limited space and a portable model for customers who cannot fit a built-in model in their kitchen area. In addition, we evaluated American Disabilities Act-compliant appliances, which must meet specific dimensions and design requirements to be certified accessible for users with disabilities. 

Materials

The tub's material can be made from either plastic, stainless steel or feature a hybrid construction, with walls lined with stainless steel and a plastic bottom. The biggest pro for plastic tub construction is that it is affordable, durable, and does not show stains easily. However, plastic can discolor and develop permanent, unsightly stains over time, especially in hard water environments. Most dishwasher models available for $400 or less have plastic tubs. 

Dishwashers with a stainless-steel tub start around $500, which is definitely pricier but not prohibitively expensive, and the benefits are worthwhile. Stainless steel models run more quietly, resist staining, and do not retain odors. Hard water stains and discoloration can develop, but the right cleaner can make the material look new again (unlike plastic). Stainless steel also improves drying performance and sanitization cycles because it can reach higher temperatures faster and cool off quickly, allowing a condensation process to dry the dishes efficiently. 

Storage

Storage capacity is measured by how many place settings a dishwasher can hold. According to the Association of Home Appliance Manufacturers, one place setting is defined as “the dishware, glasses, and flatware associated with a table serving for one person.” These include a dinner plate, a small bread and butter plate, a saucer, a bowl, a cup, a drinking glass, a knife, two teaspoons, a dinner fork, and a small salad fork. Most built-in models fit between 12 to 16 place settings in one load.

Portable dishwashers can have the same storage capacity as built-in models, but countertops or more affordable models tend to have a smaller fit. In addition to the place setting capacity, we looked at the racks. A third rack, adjustable or removable middle rack, fold-down racks and tines, silverware space, and general storage versatility are nice features to look out for. 


Performance

Dishwashers were invented with the sole purpose of handling the chore that is handwashing. Contemporary dishwashers have improved this idea, adding useful features while becoming more environmentally friendly and energy-efficient than older models. 

Noise level

Noise intensity is a key performance feature of a dishwasher. Running the appliance, potentially for more than an hour, should not disrupt your dinner conversation, sleep, or the general peace of the household. Noise level is measured in decibels, with typical models averaging between 41 to 60 decibels and higher-end models going as low as 39. Dishwashers were notoriously loud when they first entered the market, but manufacturers today produce incredibly quiet appliances. They've redesigned the sprays inside the tub so that the water jets do not hit the inner walls as much, use less pressure and aim directly at the dishes. They’ve also adapted dish racks so that dishes are placed at an optimal angle for noise reduction. Lastly, current models feature added insulation layers of sound-dampening materials like stainless steel, bitumen, and cotton fiber. 

Energy Star rating

Energy Star certification—the Environmental Protection Agency and US Department of Energy-backed program—guarantees the energy efficiency of products, homes, buildings, and plants. Energy Star certified appliances use less energy and cause fewer greenhouse gas emissions and other pollutants. The certification also comes with an Energy Guide Label, which tells the consumer the number of kilowatt-hours each dishwasher is expected to use and how much energy will cost, according to national averages. 

Dishwashers are often connected to the hot water line and include internal heating elements that can heat water between 120 and 150 degrees Fahrenheit. The more water a dishwasher uses, the more electricity is required to heat that water to temperature. An Energy Star rated dishwasher uses around 4 gallons of water. In contrast, hand washing can use up to 27 gallons, depending on your technique (cleaning the dishes in a filled sink with the tap closed, for example, is a good, eco-friendly method). We made sure that all the dishwashers we included were Energy Star certified.  

Energy and water savings come with a trade off that may be inconvenient for some. These units will take longer to complete one cycle (from one to two hours) because they operate with less water pressure. Another important thing to note when using these appliances is that not all cycles and cycle options on the unit need to be energy efficient for it to be certified. A certified appliance can be energy efficient on a normal wash cycle, but if you select an option that extends drying time or tackles really, really dirty pots and pans, this will most surely use up more energy and water than what is stated in the Energy Star label.  

NSF certification

The National Sanitation Foundation is an independent organization that sets public health standards for products. This certification guarantees that a product has been inspected and certified by a third party to comply with expert standards for safety, performance, and quality. In the case of dishwashers, the NSF specifically certifies the sanitization capacity of the appliance. 

Residential dishwashers that earn the NSF/ANSI 184 certification must eliminate at least 99.9 percent of bacteria when operating a sanitizing cycle. It is not necessary for every cycle of an appliance to achieve this, but there must be at least one cycle or cycle option with this capacity. You can determine which cycles actually sanitize by looking at the cycle and options section on the owner’s manual. This certification is crucial for consumers who want the sanitizing benefits of a dishwasher, such as individuals with an immunocompromised system. 

Regular sponges are notorious for harboring bacteria, contribute to cross-contamination, and must be regularly thrown out. NSF certified dishwashers can effectively replace this cleaning tool and contribute to the kitchen's overall cleanliness, which can be one of the most germ-ridden areas in a home. 

In a study conducted by the NSF, researchers found traces of yeast, mold, salmonella, E. coli, and listeria in items commonly used for food preparation and storage (rubber spatula, blender gasket, and container lids). It is important to note that some dishwashers will require incoming water to be pre-heated up to a specific temperature to sanitize NSF standards, so make sure to read up on the unit you are interested in and upgrade your home water heater if necessary.

 


Warranty

While manufacturers offer their own basic warranty plans for each unit, there are also extended warranty plans the consumer can add, usually as a purchase from the store or point of purchase. We focused solely on the manufacturer’s warranty for the appliances reviewed since consumers may be purchasing their dishwashers from different places. The bare minimum offered by GE and Frigidaire is a one-year limited warranty that covers parts and labor of the entire appliance. The best warranties were provided by Bosch and KitchenAid, adding coverage for certain parts and components for up to 5 years, along with a lifetime warranty on the stainless steel interior. 

Common warranty exclusions

A manufacturer’s warranty covers appliance repairs, replacements, parts, and labor for a specified amount of time, but a set of terms and conditions also limits these policies. It’s essential that you read the full warranty, as these exclusions and/or user errors can actually void the warranty and relieve the manufacturer of any responsibility. 

The full warranty should be provided as a separate document, and you can also find it at the end of the user’s manual. Per federal law, you should be able to fully read the document online or in a catalog before you buy it. The following list is by no means exhaustive, but it highlights the most common exclusions we found amongst manufacturers:  

  1. Incorrect installation or repairs performed by an unauthorized person
  2. Damage caused by incorrect operation
  3. Damage or failure caused by inadequate or interrupted water and air supply. 
  4. Damage or failure caused by incorrect electrical current or voltage
  5. Damage due to use of unapproved accessories, components, or cleaning products
  6. Repairs when products intended for residential use are employed differently (in commercial spaces, offices, or recreational facilities).  

 

Helpful Information About Dishwashers

Tips Before You Buy

  1. Measure your space. If you are installing a dishwasher for the first time, measure the height, width, and depth and make a note of any necessary electrical or plumbing modifications. Take note of door frame and hallway measurements to make sure the boxed unit can be delivered inside. 
  2. Check the water hardness in your area. Hard water can damage dishwashers over time, shorten their lifespan, and impact performance.  
  3. Check your water heater. Some dishwashers can work with cold water, while others need incoming water to be at least 120 degrees Fahrenheit for proper functioning and sanitization.  
  4. Keep track of sales events during major holidays to snag a much better deal. Have a list of your preferred models and brands, and keep an eye out for online and in-store discounts.
  5. Compare, compare, compare. Don’t just purchase the first dishwasher you see at the store.  Check out prices, delivery, and service/repair options before deciding. 

dBA: What does it mean?

Decibels (dB) are the units used to measure sound intensity. A 1 dB change in sound levels is about the smallest change in volume that the human ear can register. Bear in mind that the decibel scale is logarithmic, not linear, meaning that a 1 dB variation between dishwasher sound levels represents a 7% difference in perceived loudness, while a 3 dB variation represents a 23% difference. So far, so good. But then why does my appliance measure sound in dBAs?

dBAs are a different version of decibels used by manufacturers to measure the dishwashers' noise level. dBA measures not only sound intensity but also the response of the human ear. The human ear perceives frequencies differently, and some frequencies will not have the same effect as others, despite their intensity. dBA takes this into account and provides a better idea of how noise level actually affects a person. 

Extended warranty

The FTC defines extended warranties or service contracts as agreements that provide service and maintenance for a specific amount of time. While the manufacturer’s warranties are included in the product's price tag, an extended warranty is an add-on with an extra cost. According to Yale Appliance, modern appliances in general fail and break down more often than before. This fact alone is enough to incentivize consumers to purchase an extended warranty plan. However, with stores reporting a profit margin of around 50% to 60%, the sale of these plans is very profitable for the store and the providers, while the consumer's benefit is debatable.

Extended plans provide coverage on parts, labor, and repairs for a longer time period, past the manufacturer’s warranty's expiration date. However, exclusions are extensive, and the upfront cost can reach a couple of hundred dollars, depending on the plan. Terms and conditions from one major provider, for example, exclude coverage for cosmetic damage, damage due to power surges, exposure to weather conditions, dirt, rust, corrosion, infestation, negligence, inadequate plumbing, and the list goes on. Acts of God, like natural disasters (flooding or fires, for example) and problems caused by lack of routine maintenance, are not covered either. 

When thinking about an extended service plan for an appliance, ask yourself the following questions: 

  • What type of damage is the most common? 
  • How high is the failure rate for this product? 
  • What is already covered by my manufacturer?
  • How much does this plan cost upfront, and how much can future potential repairs cost me out of pocket? 

The most expensive components to repair or replace in a dishwasher are the motor and the drain pump. When units get to this point in terms of damage, many appliance blogs recommend replacing it altogether instead of paying for labor and parts to repair them. It’s just not cost effective. Still, failure from these components is not listed as a common problem during the lifetime of a unit. Common problems, like drainage issues, leaks, or washing and drying problems, are repairs that tend to cost less out of pocket than the extended service plan. 

Power surges can be a big concern for customers who want to protect their appliances' electrical components. Manufacturer’s warranties do not cover power surges, but some extended warranty plans offer this protection as one of their main selling points. Nevertheless, if power surges are a consistent problem, it might still be a better idea to invest in a surge protector for the home that will protect all of your electronics and appliances instead of paying hundreds of dollars for a warranty plan that insures just one appliance for a limited time.

Caring for Your Dishwasher

 

How to unclog a dishwasher

Before attempting to repair anything on your appliance, there are two important steps. First, you need to unplug the dishwasher to minimize your risk of electric shock. Second, always check the manufacturer’s manual for instructions. That being said, the root of a clogged dishwasher can be found mainly in two parts: the drain hose and the filter. The filter can get clogged with large chunks of food or even paper labels. Look at the manual to find instructions on disassembling the filter to clean it and replace it. To unclog the drain hose, disconnect it from the pump and check for blockages. Some plumbers just straight up blow on it, but if that feels too unsanitary (understandably), you can also pour hot water and soap or baking soda and vinegar to clear it up. Home Depot, Sears, and GE offer basic troubleshooting guides that can be easily consulted online. If none of these tips work, the source of the problem may need to be fixed by a professional.

To prevent clogs in the first place, clean the filter regularly, and scrape food off of dishes. It is also important to use the recommended amount of detergent, or there is a risk of excessive suds clogging the drainage.

Cleaning and maintaining stainless steel 

Stainless steel is the preferred material for exterior finishes on most appliances. One important caveat with this material is that it is not really stainless, and it can rust. Stainless steel is an alloy that contains other metals, such as iron, chromium, manganese, silicon, carbon, and nickel. These added elements react with the environment and form a thin film that protects the steel's surface but harsh cleaning chemicals, abrasive cleaning tools, and even salt air particles in coastal residences can damage this film and allow rust to form. The strength and corrosion-resistance of stainless steel depend on its grade, and while interior components are made with high-grade steel, manufacturers tend to use a different, lower-grade one for exterior finishes that is not as rust-proof. 

The best way to clean these surfaces is by using a cloth or a sponge with regular dish soap and drying immediately. Hard water stains or rust particles can be removed with specialized stainless steel cleaning products such as Bar Keepers Friend. You can also paint over the surface with a clear, protective coating when you first receive your appliance. 

Can I clean my dishwasher naturally?

You can use vinegar to clean hard water stains and build-up. Put a cup of vinegar inside the dishwasher and run the hottest cycle, opening the door at the end to let it air dry. Remember never to mix vinegar with bleach. You can also use baking soda as a mild scrub for hard to remove stains.  

What To Watch Out For With Dishwashers

Brands and manufacturers 

In today’s global manufacturing economy, it is important to distinguish between brands and manufacturers. Global corporations like Whirlpool own multiple brands such as KitchenAid, Maytag, Amana, Jenn-Air, and Consul. These brands might seem like direct competitors to the naked eye, but in reality, they are individual subsidiaries of larger parent companies. This does not mean that each brand is interchangeable in quality and construction, but it does mean that they might share manufacturers and some similarities in components and features. This valuable information is a bit tricky to trace and can vary not only by brand but also by model. Using the serial number of your appliances or looking up the manufacturer directly on the user manual, you can see who manufactured that specific model and make an informed decision. 

Purchasing used or refurbished appliances 

Purchasing a used or refurbished appliance can be a good way to save money, but you must be particularly careful with dishwashers. Older models can be louder, consume more water and energy, and need costly repairs not covered by any warranty. All appliances have a lifespan, and used ones will have a shorter one with fewer guarantees. 


FAQs about Dishwashers


What is the best time of the year to buy a dishwasher?

Keep an eye out for holiday sales. Stores tend to offer good discounts on Memorial Day, Labor Day, Black Friday, and Fourth of July—but make sure to check the discounts against the regular store price to see whether it’s an actual good deal.


Is it safe to put bone china in the dishwasher?

Putting bone china in the dishwasher is generally not recommended. However, some manufacturers do label their china dishwasher safe. If you decide to put it in the washer, make sure to load the dishes very carefully so that pieces do not touch each other, use a short cycle, and only use non-abrasive detergent. It’s important to remember that china with gold or platinum accents should not go through the cycle's drying stage, as the intense heat could cause the metal to soften.


Can I install my dishwasher myself?

If you’re replacing a dishwasher, installing a new one does not necessarily require a professional. Make sure to read the installation guides thoroughly, as the manufacturer’s warranty will not cover any installation mistakes. Installing a new one completely, where there wasn’t an existing dishwasher before, might be more difficult if you don’t have much experience with serious DIY projects. Kitchen cabinets may have to be altered, flooring often needs to be evened out, and electrical and/or plumbing connections will need to be set up. Any mistakes due to inexperience will be an expensive headache you’d rather avoid. 


Is it better to purchase at local appliance stores or big box stores?

Big box stores can have a convenient location, better prices, and a wider selection of options. According to Bellingham Electric, larger retailers can lack knowledgeable staff and service technicians to work on appliances that might need repairs (and they will). Smaller stores generally have service technicians on staff, along with experienced salespeople and more accessible customer service. Local appliance stores are the way to go if you can afford it, trust the staff, and they carry a model that you like. 


When should I buy a new dishwasher?

You should consider purchasing a new dishwasher when damage (operational flaws, rust, cracks, water leaks, damaged heating element, etc.) is not covered by the warranty and is too expensive to repair. You may also want to consider budgeting for a new one if you have an old model that’s not up to date on current energy efficiency standards. 


What dishwasher brands are made in the USA?

This is tricky because manufacturing is now on such a global scale, and many household brands are subsidiaries of larger parent companies. An American company could manufacture its refrigerators in the US but outsource construction for its dishwashers overseas. On the other hand, a company can manufacture in the USA and be owned by a foreign conglomerate, so the profits go abroad. According to Yale Appliance, the following companies manufacture most of their selection in the USA and are American-owned: Hestan, Kalamazoo, Viking, Speed Queen, BlueStar, True, Sub-Zero, Wolf, and Whirlpool. 


How much does a dishwasher cost?

Dishwashers can be found for prices as low as $200 or as high as $2,000. It depends on the materials and features of each model. Most brands have options for all price ranges. 


How long does a dishwasher last?

Dishwashers can last 10 years on average, with proper use and maintenance. 


What is the best dishwashing detergent?

Cascade and Finish are some of the best-selling brands, recommended by many manufacturers. Dishwasher detergent comes in liquid form, tablets, powder, and pods and the choice between them is up to personal preference. Always consult the user manual to be sure, but as long as the detergent is specifically made for these appliances, feel free to choose the brand and type of detergent you like best.


Can I use regular dish soap on my dishwasher?

No. Per the manufacturer’s guidelines, you should only use soap specifically made for dishwashers. Dishwasher soap is formulated to be less foamy than regular dish soap; it doesn’t sud and will not leave any residue inside the appliance or on the dishes. If you use a regular dish and/or hand soap, you run the risk of overflowing the appliance with excess foam and water, potentially flooding and damaging the floor around the appliance.


How do I dispose of an old dishwasher?

You can try to sell it if it is in good condition or hand it over to junk dealers. Recycling is ideal, as appliances can often be broken down and used for parts and scrap metal. Check if your local government has recycling programs or companies in your area dedicated to recycling appliances and electronics. 


What does dishwasher safe mean?

Dishwasher safe means that an item can safely withstand higher water temperatures and dishwasher detergents. An item can be “dishwasher safe, top rack only,” or just “dishwasher safe.”  


Is it safe to run a dishwasher overnight?

No. Just like leaving the stove on while you step out is a fire hazard, so is running a major electrical appliance overnight unsupervised. 


Is it safe to put baby bottles in the dishwasher?

Baby bottles can be cleaned in a dishwasher if the bottle’s manufacturer certifies it as dishwasher safe. To wash, separate the bottle parts, rinse them under running water, and place the parts in the dishwasher. Make sure to put small parts in a closed-top basket (many dishwashers have one to protect small utensils) or in a mesh bag; otherwise, they could end up caught in the filter.