The Best Dishwasher Cleaners – Picks from Bob Vila

Your dishwasher is a hardworking kitchen hero. It battles lasagna pans, oatmeal bowls, coffee mugs, mystery sauce, and that one fork someone used for peanut butter and then abandoned like a crime scene. But here is the twist: the machine that cleans your dishes also needs cleaning. Food residue, grease, mineral deposits, detergent film, and hard-water buildup can collect inside the tub, filter, spray arms, drain area, racks, seals, and hidden plumbing.

That is where the best dishwasher cleaners come in. These products are designed to freshen the interior, dissolve limescale, reduce odors, and help your dishwasher perform the way it did before it started smelling faintly like yesterday’s tuna casserole. Inspired by Bob Vila’s dishwasher cleaner picks and supported by guidance from appliance-care experts and cleaning labs, this guide breaks down what to buy, how to use it, and how to keep your dishwasher from becoming a tiny swamp with buttons.

The short version: Affresh Dishwasher Cleaner Tablets are a strong overall pick for most homes, Active Dishwasher Cleaner and Deodorizer Tablets offer standout value, Finish Dishwasher Cleaner Liquid is great for people who prefer a liquid formula, and Lemi Shine Dishwasher Cleaner is a smart eco-minded choice for hard-water buildup. But the best option depends on your water, your dishwasher habits, and how dramatic your appliance has become lately.

Why You Need a Dishwasher Cleaner

A dishwasher may look clean after a cycle, but appearances can be sneaky. Grease and detergent residue can cling to the walls. Hard-water minerals can leave cloudy film. Food particles can sit in the filter. Spray arm holes can clog. Door gaskets can develop gunk. None of this is glamorous, but all of it affects cleaning performance.

A quality dishwasher cleaner helps remove buildup in places your sponge cannot easily reach. It can also reduce unpleasant smells, improve water flow, and help dishes come out cleaner. That does not mean a cleaner replaces basic maintenance. Think of it like taking your car through a car wash: helpful, yes, but it will not change the oil, rotate the tires, and emotionally support the engine. You still need to clean the filter, scrape food from plates, and avoid overloading the racks.

Best Dishwasher Cleaner Picks

Best Overall: Affresh Dishwasher Cleaner Tablets

Best for: Most households, monthly maintenance, convenience, and hard-water residue.

Affresh Dishwasher Cleaner Tablets are one of the most user-friendly choices because they come in premeasured tablets and can be used in an empty dishwasher or, depending on label directions, during a loaded cycle. Bob Vila highlights Affresh as a top overall pick, and it is easy to see why: the tablet format is simple, the formula targets mineral deposits and odor-causing residue, and the product is widely available.

Affresh is especially useful for homeowners who want a low-effort routine. Once a month, place the tablet as directed, run a normal or cleaning cycle, and let the product do the unglamorous work. It is a strong choice if your dishwasher smells stale, your glasses look cloudy, or your machine has visible mineral film around the tub or heating element area.

What to know: For heavy buildup, some instructions recommend using more than one tablet or running an empty cycle. Always follow the product label and your appliance manual.

Best Value: Active Dishwasher Cleaner and Deodorizer Tablets

Best for: Budget shoppers, bulk buyers, and households with hard water.

Active Dishwasher Cleaner and Deodorizer Tablets are often praised for value because they are sold in larger quantities, making them attractive for families that clean their dishwasher regularly. Bob Vila’s roundup identifies Active as a budget-friendly option, especially for people who want enough tablets to maintain the appliance over many months.

The formula is commonly associated with citric-acid cleaning power, which is useful for limescale and hard-water stains. If you live in an area where faucets, shower doors, and coffee makers seem to grow chalky white residue overnight, your dishwasher is probably dealing with the same mineral drama. Active tablets can help dissolve that buildup while deodorizing the interior.

What to know: Some tablet cleaners can foam more than expected if misused or if the dishwasher contains leftover soap. Use only as directed and avoid adding regular dish soap. Dish soap belongs at the sink, not inside a dishwasher, unless your goal is to create a kitchen foam party no one asked for.

Best Liquid: Finish Dishwasher Cleaner Liquid

Best for: Grease, limescale, deep cleaning, and people who prefer liquid cleaners.

Finish Dishwasher Cleaner Liquid is a popular liquid option designed to target grease and mineral buildup. Bob Vila lists it as a top liquid cleaner, and the product’s design makes it easy to use: the bottle is typically placed upside down in an empty dishwasher so the cleaner releases during the cycle.

Liquid cleaners can be appealing because there is no tablet to dissolve. This makes Finish a practical option for users who have had pods leave residue in the past, especially during shorter or cooler cycles. It is also a good choice for dishwashers with greasy buildup, such as machines that regularly handle casserole dishes, oily pans, or plastic food containers.

What to know: Finish’s liquid cleaner is usually a single-use bottle, which may not be ideal for shoppers trying to reduce packaging waste. It is convenient, but not the lowest-waste choice.

Best In-Wash Cleaner: Finish In-Wash Dishwasher Cleaner

Best for: Busy households that want to clean the dishwasher during a regular dishwashing cycle.

Finish In-Wash Dishwasher Cleaner is designed for use while the dishwasher is loaded, which is excellent for people who do not want to run an empty cycle. It is a convenient approach: load the dishwasher, add detergent as usual, place the cleaner according to the directions, and run the cycle.

This product is useful for ongoing maintenance rather than a once-a-year rescue mission. If your dishwasher is not severely dirty but needs routine help with grease and residue, an in-wash cleaner can keep things fresher without adding another chore to your calendar.

What to know: Some in-wash products are recommended more frequently than monthly. Check the label before deciding how often to use them.

Best Multi-Appliance Tablet: Plink Washer and Dishwasher Freshener and Cleaner

Best for: Homes that want one product for both dishwasher and washing machine freshness.

Plink Washer and Dishwasher Freshener and Cleaner is a dual-use product that can be used in both dishwashers and washing machines. That versatility is handy if you prefer fewer cleaning products under the sink. It is also useful for people who mainly want odor control and light maintenance rather than a heavy-duty descaling treatment.

Plink tablets are often associated with a lemon scent, which can make the dishwasher smell fresher after use. If your dishwasher is mostly clean but occasionally develops that “wet lunchbox” smell, this type of freshener-cleaner can be a practical pick.

What to know: Dual-purpose products may not be the strongest option for severe limescale, rust, or biofilm. For tough buildup, choose a cleaner specifically matched to the problem.

Best Gel: Ahh-some Washing Machine/Dishwasher Bio Cleaner

Best for: Biofilm, stubborn odors, and deeper appliance cleaning.

Ahh-some Washing Machine/Dishwasher Bio Cleaner is a concentrated gel that can be used for dishwashers and washing machines. It is known for targeting biofilm, residue, mold, mildew, and buildup that can hide inside appliance systems. Instead of dropping in a tablet, users typically dissolve a small amount in warm water and pour it into the machine before running a cycle.

This cleaner may appeal to people dealing with persistent smells that do not go away after a basic cleaning tablet. It is also useful if the dishwasher has been ignored for a long time. No judgment. We have all discovered a forgotten filter and wondered whether it had started its own civilization.

What to know: Stronger cleaners can loosen gunk, which may leave residue behind after the cycle. You may need to wipe the tub and run an additional rinse cycle.

Best Disinfectant-Style Cleaner: Glisten Dishwasher Cleaner

Best for: Odors, stains, limescale, rust marks, and users who want a cleaner with disinfecting claims.

Glisten Dishwasher Cleaner is often recognized for tackling grease, hard-water deposits, rust, soap buildup, and odors. It is typically used in an empty dishwasher, with the bottle positioned so the cleaner releases during a hot cycle. Good Housekeeping has also highlighted Glisten as a strong value pick in dishwasher cleaner roundups.

This product is helpful if your dishwasher has visible staining, rust-colored mineral marks, or persistent smells. It can be a good reset product before switching to a monthly maintenance schedule.

What to know: Not every cleaner that freshens a dishwasher is a disinfectant. If sanitizing claims matter to you, check the label carefully for EPA registration and follow the directions exactly.

Best Eco-Friendly Pick: Lemi Shine Dishwasher Cleaner

Best for: Hard water, citric-acid cleaning, and shoppers looking for an EPA Safer Choice-certified option.

Lemi Shine Dishwasher Cleaner uses citric acid to fight hard-water buildup and odor-causing residue. It is a popular choice for people who prefer a cleaner with a more eco-conscious profile. Bob Vila highlights it as an eco-friendly pick, and Lemi Shine promotes its dishwasher cleaner as an EPA Safer Choice-certified product.

Citric acid is especially helpful in homes with mineral-heavy water. If your glasses look foggy, your dishwasher walls have chalky residue, or your appliance smells stale even after normal cycles, Lemi Shine is worth considering.

What to know: Some users love lemon-scented cleaners; others find fragrance unnecessary. If you are sensitive to scent, check reviews and product details before buying.

Other Dishwasher Cleaners Worth Considering

Bob Vila’s picks are a strong starting point, but other reputable cleaning guides often highlight Cascade Dishwasher Cleaner, especially for convenience and monthly maintenance. Cascade’s single-dose packs are designed for empty dishwasher cycles and target odors, limescale, and grease. If you already use Cascade detergent, the cleaner may fit neatly into your dishwashing routine.

Powdered citric acid is another option sometimes used for mineral stains, but commercial dishwasher cleaners are generally easier because they are measured, labeled, and formulated for appliance use. Vinegar may help with mild deodorizing and mineral film, but it is not always the best solution for every machine or every type of buildup. When in doubt, your dishwasher manual wins the argument.

How to Choose the Best Dishwasher Cleaner

1. Match the Cleaner to the Problem

If your dishwasher smells bad, look for a deodorizing cleaner. If your glasses are cloudy or the tub has white residue, choose a descaling product with citric acid or limescale-fighting ingredients. If grease is the issue, a cleaner designed for grease buildup is the better match. Buying the right cleaner is like hiring the right specialist: you would not call a roofer to fix your Wi-Fi.

2. Consider the Formula Type

Tablets are convenient and easy to store. Liquids can be excellent for deep cleaning and may leave less undissolved residue. Pods are quick and tidy, especially in in-wash formulas. Powders can be effective for hard-water buildup and often use citric acid. Gels may work well for biofilm and stubborn grime but sometimes require more preparation.

3. Check for Certifications

EPA Safer Choice certification can help shoppers identify products whose ingredients have been reviewed against human-health and environmental criteria. This does not automatically mean the product is the strongest cleaner, but it is useful for consumers who care about safer ingredient profiles.

4. Think About Scent

Lemon and fresh scents are common in dishwasher cleaners. A light scent can make the appliance smell cleaner, but fragrance is not the same as cleaning power. If you dislike scented products, look for fragrance-free or lower-scent options when available.

5. Look at Cost Per Use

A cheap box is not always the best value if you need multiple doses per cleaning. Compare the number of tablets, bottles, or packets and how often the manufacturer recommends using them. Bulk tablets often win on cost per cycle, while single-use liquids may win on convenience.

How Often Should You Clean Your Dishwasher?

For most households, cleaning the dishwasher once a month is a practical routine. Homes with hard water, heavy dishwasher use, frequent greasy loads, or persistent odors may need more frequent cleaning. Some in-wash cleaners are designed for weekly use, while stronger deep cleaners may be monthly or every other month.

Do not forget the filter. Many modern dishwashers have manual filters that trap food particles. If the filter is dirty, a dishwasher cleaner cannot perform miracles. Remove the filter according to your manual, rinse it under warm water, and gently scrub it with a soft brush if needed. A clogged filter can cause odor, poor drainage, and food particles redepositing on dishes.

Step-by-Step: How to Use a Dishwasher Cleaner

Step 1: Empty the Dishwasher When Required

Many deep-cleaning liquids and tablets are meant for an empty dishwasher. In-wash products and certain tablets may be safe to use with dishes, but only if the label says so. Never guess. Dishwashers are useful, but they are not fond of improvisational chemistry.

Step 2: Clean the Filter First

Remove the filter, rinse away food debris, and scrub gently with warm water and a soft brush. Reinstall it securely. Running a cleaner through a dishwasher with a filthy filter is like spraying perfume on a gym bag. Technically something happened, but the root issue remains.

Step 3: Add the Cleaner Correctly

Place tablets, pods, powders, gels, or liquid bottles exactly as directed. Some tablets go in the detergent dispenser for empty cycles and on the bottom of the dishwasher for loaded cycles. Some liquids go upside down in the rack. Some gels must be dissolved first.

Step 4: Run the Recommended Cycle

Most cleaners work best with a hot or normal cycle. Some labels recommend the hottest or longest cycle. Heat helps dissolve grease and activate cleaning ingredients. Avoid adding regular detergent unless the cleaner instructions specifically call for it.

Step 5: Wipe and Inspect

After the cycle, wipe the door gasket, edges, and any loosened debris. Check the spray arms for clogged holes. If the dishwasher still smells or has visible residue, repeat maintenance or try a stronger cleaner matched to the issue.

Common Mistakes to Avoid

Using Dish Soap in the Dishwasher

Regular dish soap creates suds. Dishwashers are not designed for suds. Unless you want foam creeping across the kitchen floor like a low-budget horror movie, keep dish soap out of the dishwasher.

Ignoring the Filter

The filter is where food debris goes to retire. If you never clean it, odors and poor washing results are almost guaranteed. Make filter cleaning part of your weekly or monthly routine.

Overloading the Racks

Even the best dishwasher cleaner cannot fix blocked spray arms. Load dishes so water can reach every surface. Bowls should face downward, plates should not nest together, and tall items should not stop spray arms from spinning.

Assuming Cleaner Equals Sanitizer

Many dishwasher cleaners remove buildup and odors, but not all disinfect. If sanitization matters, use your dishwasher’s sanitize cycle when appropriate and check whether the cleaner itself has EPA-registered disinfecting claims.

Real-World Experience: What It Is Like to Use Dishwasher Cleaners

After using several types of dishwasher cleaners over time, one thing becomes obvious: the biggest improvement usually comes from combining a good cleaner with basic maintenance. A tablet or liquid cleaner can make the tub smell fresher and look shinier, but the filter is often the real villain. The first time you remove a neglected dishwasher filter, you may discover a damp collection of rice, onion skin, coffee grounds, and something that once dreamed of being pasta. Cleaning that filter before using a dishwasher cleaner makes a noticeable difference.

In homes with hard water, citric-acid-based cleaners tend to shine. They help reduce chalky buildup around the walls, heating element area, and door edges. Lemi Shine and Active-style tablets are useful in these situations because mineral film is not just cosmetic; it can make glasses look cloudy and interfere with spray performance. If your dishwasher has a white haze after many cycles, a descaling cleaner is often more satisfying than a simple deodorizer.

Liquid cleaners, such as Finish Dishwasher Cleaner Liquid, feel more like a deep-cleaning session. They are easy to use, especially because the bottle releases during the cycle, and they are helpful when grease is the main complaint. After a cycle, the dishwasher may smell cleaner, and the interior often feels less slick. The downside is packaging. A single-use bottle is convenient, but if you clean monthly, the waste adds up.

Tablets like Affresh are the easiest habit to maintain. They take up little space, require no measuring, and are simple enough that nobody in the household can claim the instructions were “too complicated.” Affresh is especially practical because it can fit into a monthly calendar reminder. Drop in the tablet, run the cycle, wipe the gasket, and move on with your life.

For busy kitchens, in-wash cleaners are appealing because they do not require an empty cycle. This matters for families that run the dishwasher every night and never seem to catch it empty. The trade-off is that in-wash products may work best as maintenance rather than a full reset. If the dishwasher already smells like a science project, start with a deep cleaner and then use in-wash products to stay ahead of buildup.

The most useful personal routine is simple: scrape plates, load correctly, clean the filter weekly or every couple of weeks, wipe the gasket, and run a dishwasher cleaner once a month. That routine prevents most odor problems before they become dramatic. It also helps dishes come out cleaner without using extra detergent. More detergent is not always better; sometimes the machine simply needs better water flow, a clean filter, and less residue inside.

Another lesson: scent can be misleading. A lemon smell is pleasant, but it does not prove the dishwasher is truly clean. Look for visible improvements, better drainage, fewer cloudy glasses, less film on the tub, and cleaner-smelling steam after cycles. If odors return quickly, check the drain area, garbage disposal connection, filter, and spray arms. The problem may be mechanical or plumbing-related rather than a cleaner issue.

Ultimately, dishwasher cleaners are worth using because they are inexpensive, easy, and preventive. They will not repair a broken pump or unclog a severely blocked drain line, but they can help keep a healthy dishwasher running well. Think of them as monthly housekeeping for the machine that does daily housekeeping for you. Fair is fair.

Conclusion

The best dishwasher cleaner depends on your biggest problem. For most homes, Affresh Dishwasher Cleaner Tablets offer the best balance of convenience, cleaning power, and routine maintenance. Active Dishwasher Cleaner and Deodorizer Tablets are excellent for value-focused shoppers. Finish Dishwasher Cleaner Liquid is a strong liquid choice for grease and limescale. Finish In-Wash Dishwasher Cleaner is ideal for busy households that want maintenance during a regular load. Glisten is helpful for tougher odors and stains, while Lemi Shine is a smart pick for hard water and eco-minded cleaning.

Whichever cleaner you choose, remember the golden rule: the cleaner works best when the dishwasher is maintained. Clean the filter, remove visible debris, wipe the gasket, avoid overcrowding, and run a monthly cleaning cycle. Your dishwasher will smell better, clean better, and stop giving off “forgotten leftovers in a warm cave” energy. That alone is worth the price of a tablet.

Note: Always follow the cleaner label and your dishwasher manufacturer’s manual before using any cleaning product.