Top 5 Drain Cleaners For Dishwashers: A Quick Review

Does your dishwasher suddenly smell like old food, even after a wash cycle? That musty odor or slow draining can turn a helpful appliance into a frustrating mess. You know you need a solution, but stepping into the drain cleaner aisle feels like entering a jungle of confusing labels and strong chemicals. Which product is safe for your dishwasher’s parts? Will it actually work on that stubborn grease buildup?

Choosing the wrong cleaner can damage your appliance or simply fail to solve the problem, wasting your time and money. We understand this struggle. That is why we dove deep into the best, safest, and most effective ways to clear those clogs and eliminate odors right from your dishwasher drain.

Keep reading to discover the top drain cleaner options specifically designed for dishwashers. We break down the pros and cons of chemical versus natural solutions, ensuring your machine runs smoothly and smells fresh again. Let’s get your dishwasher back to sparkling!

Top Drain Cleaner For Dishwasher Recommendations

No. 1
Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply
  • DID YOU KNOW? Odor causing bacteria can transfer onto dishes, glasses and silverware. Affresh dishwasher cleaner deep cleans even where you can't see to remove rotten food debris.
  • HELPS POWER AWAY SMELLS created by odor causing bacteria, foggy limescale and mineral deposits hiding deep inside the dishwasher’s pump, filter, tub, valve, drain, washer arms and recirculation hoses to help optimize appliance performance.
  • USE WITH OR WITHOUT DISHES. Unlike other brands, affresh dishwasher cleaner is safe to use while running a full load.
  • TRUSTED BY APPLIANCE EXPERTS. With over 100 years of appliance innovation, affresh appliance care gets the tough jobs done right!
  • SAFER FOR PEOPLE. SAFER FOR PLANET. Affresh dishwasher cleaner is EPA Safer Choice Certified and is septic safe.
No. 2
Finish Dishwasher Cleaner Liquid, Deep Cleans Hidden Grease & Limescale, Fights Odors & Maintains Performance, 3 Month Supply, 8.45oz, 1 Bottle
  • DEEP CLEANS INNER PARTS: Finish Liquid Dishwasher Cleaner targets hidden grease, hardwater buildups, and limescale in spray arms, filter, and pipes for a hygienic clean.
  • IMPROVES DISHWASHER PERFORMANCE: Your dishwasher cleans dishware better with Finish dish washer machine cleaner.
  • FIGHTS ODORS AT THE SOURCE: Neutralizes lingering smells and keeps your dishwasher fresh after each use.
  • HELPS MAINTAIN DISHWASHER HEALTH: Use every 3 months to help keep your dishwasher clean and performing at its best.
  • 5X MORE CLEANING PERFORMANCE: Finish dishwasher cleaners have 5X more cleaning performance than dishwasher cleaner tablets.
No. 3
Dishwasher Cleaner And Deodorizer Tablets - 24 Pack Deep Cleaning Descaler Pods for Dish Washer Machine, Heavy Duty, Septic Safe, Natural Limescale Remover, Calcium, Odor, Smell - 12 Month Supply
  • Wide Compatibility - ACTIVE Dishwasher Cleaner is suitable for Most Residential or Commercial Automatic Dishwashing Units. Compatible with GE, Bosch, Frigidaire, LG, Samsung, Whirlpool, Kitchenaid, Kenmore, Maytag, Amana models, all styles including plastic & stainless steel. To ensure proper cleaning, we recommend to monitor your dishwasher during cycle. If you see any foam or water leaking from the machine, stop dishwasher and allow foam and water to drain before continuing
  • Deep Descaling Formula - Make your dish washing appliance shine. Removes hardwater, lime, scale, grime, grease, stain and more with a simple citric acid powder diswasher cleaning agent. Removes gunk spot and can help prevent clog and clear out foam in jet, tubes, and filter area.
  • Fresh Odor Eliminator - Dual action freshener booster tablet for smelly dishwashers. ACTIVE Dishwasher cleaner's Natural Lemon-citrus Scent leaves your dishwaser smelling and looking good.
  • Monthly Maintenance Solution - Keep your dishmachine cleaned with ACTIVE kitchen cleaning supplies. Use single or 2 treatment tabs per month. Place pod inside empty disheasher, run a self clean or regular dishwash to restore your machine. If extra cleaning is needed, always perform two separate cleaning cycles with a single tablet each, adding more cleaner can result in excess foam that effects function.
  • Bulk 24 Count Kit - Contains 24 ACTIVE Dishwasher Cleaning Tablets - You're set for a year or more. That's our Best Value Promise - Compare to product with less tablet or single-use liquids.
No. 4
Garbage Disposal Cleaner Deodorizer Tablets - 24 Pack, New Powerful XL Foaming Tablet - Fresh Citrus Foam Sink Garburator Disposer Freshener, Natural Kitchen Drain Cleaning Care - 1 Year Supply
  • Designed For Garbage Disposals : Compatible with All Kitchen Waste Dispoal Models Including Insinkerator, Moen, Ge, Frigidaire, Kohler, Kitchenaid, Waste Maid, Waste King, Farberware and more
  • Easy Monthly Cleaner : Use Tablets 1 - 2 Times Per Month to Care for your Garberator. Each Tab easily drops in your drain for quick Disposal Care
  • Natural Citrus Scent : Orange- Lemon Deoderizer Scented Pod Smells the best, and Cleans the Best using only Simple Ingredients.
  • Bulk 24 Packs - Compare to Smaller Packets that only last a couple months. ACTIVE Disposer Cleaner 12 month supply lasts for up to a year of maintenance
No. 5
48" Air-Gap Drain Brush - Flexible Dishwasher and Sink Cleaner Tool for Home and Commercial Kitchen - Long Pipe Snake for Garbage Disposal, Shower, Hair Clog Remover - B291C by FryOilSaver Co.
  • CLEAR FLOW FAST: Restore smooth drainage by pulling out hair and buildup; the long drain brush reaches deep bends in sink and shower lines to lift debris instead of pushing it farther down.
  • AIR GAP CLEANING: Help prevent dishwasher backups—use as an air gap cleaning tool and dishwasher drain hose cleaner to scrub narrow tubes where gunk collects, without disassembly.
  • FLEXES THROUGH BENDS: Reach tight corners without kinking; this flexible cleaning brush threads through curves, and the pipe cleaning brush bristles scrub grease, soap scum, and residue from walls.
  • FITS MORE TUBES: Clean small and standard lines; slim head works in tubes over 1/4 in and common 1/2, 3/4, and 1 in pipes, making a reliable sink drain cleaner brush for routine care.
  • RINSE & REUSE: Skip harsh chemicals for many clogs—use this drain cleaner tool, rinse under water, and hang to dry; bristles grab debris for easy removal in home or commercial kitchens.
No. 6
Green Gobbler Enzyme Drain Cleaner | Controls Foul Odors & Breaks Down Grease, Paper, Fat & Oil in Sewer Lines, Septic Tanks & Grease Traps | 1 Gallon
  • ENZYME ENHANCED FORMULA: Green Gobbler Enzymatic Drain & Grease Trap Cleaner uses an enzyme enhanced formula to clear buildup and remove odors in grease traps, septic tanks and similar plumbing systems. It helps digests oils, fats, grease, sludge and other food waste within hours of application. This bottle uses anti-glug technology to help reduce splashing and provides up to eight treatments.
  • SAFE FOR PIPES: Green Gobbler helps maintain drain lines, septic tanks, grease traps and grease interceptors. Our enzyme enhanced formula is an excellent alternative to sodium hydroxide and other caustic chemicals.
  • IMPROVE GREASE TRAP EFFICIENCY: Green Gobbler increases the efficacy of grease traps by allowing enzymes & bacteria to work more efficiently to promote the separation of water and grease, helping your trap run more smoothly.
  • KEEP SEPTIC TANKS HEALTHY: Green Gobbler helps prompt the biological breakdown of foul odors and organic material inside demanding environments such as drains, pipes and septic tanks.
  • GREEN GOBBLER GUARANTEE: Green Gobbler cares about its customers. We take pride in developing innovative & effective products for your home or business. If for any reason you are unsatisfied, please contact us. We offer a money-back guarantee within 30 days of purchase.
No. 7
Instant Power Disposal and Drain Cleaner – Liquid Enzyme Clog Remover, Cleans and Deodorizes, Removes Drain Blockages, Fresh Lemon Scent, 33.8 Fl oz, 1 Liter
  • CLEANS AND DEODORIZES: Bad odors in your home could indicate that your disposal and drain system is clogged; Instant Power clogged drain cleaner removes blockages, clears odor-causing build-up, and leaves a fresh citrus scent
  • EFFECTIVE CLOG REMOVER: Our drain cleaner uses enzymes to breakdown and rinse away grease, food particles, and other materials that get stuck in your drainage over time
  • SAFE AND EASY-TO-USE: Our enzyme drain cleaner uses a non-acid formula, so it's safe on your pipes and septic systems; It's also ready to use, just pour 1-2 ounces into the disposal and repeat weekly
  • NO HARSH CHEMICALS: Instant Power Disposal and Drain Cleaner does not use harmful acids and caustic ingredients; It contains powerful enzymes that clear clogs but is safe on your pipes and septic system
  • ENVIRONMENTALLY FRIENDLY: This effective drain cleaner has beneficial enzymes that are safe for the environment and your pipes
No. 8
Enzyme Drain Cleaner & Deodorizer for Sink Drain, Showers, Septic Systems, Bathroom & Kitchen - Smell Remover for Fruit Fly Garbage Disposals, Dishwasher & Washing Machines - (32oz)
  • SAFE AND ECO-FRIENDLY: BioFresh uses natural bacteria cultures to break down odors and organic waste. The ingredients are a proprietary blend of microbes that are safe, effective, and won’t damage your drains, pipes or septic systems.
  • MADE IN THE USA: We are proud that all of our products are created and manufactured in the USA. We have strict quality control measures in place to ensure consistency and potency.
  • HOW TO USE: Perfect as a garbage disposal cleaner and deodorizer, washing machine odor eliminator, dishwasher clogs, and shower drain clog remover. Unclog and deodorize any drain. Great for returning flow to slow drains. Use in washing machines, dishwashers, toilets, urinals, and garbage disposals.
  • DOUBLE STRENGTH: Super concentrated formula. Up to 16 treatments per 32 oz bottle and 64 treatments per gallon.
  • SATISFACTION GUARANTEED: We go above and beyond for all of our customers. Get 100% money back if you are unsatisfied for any reason.

The Ultimate Buying Guide: Choosing the Best Drain Cleaner for Your Dishwasher

Dishwashers are lifesavers, but clogged or smelly drains can ruin their magic. A good drain cleaner keeps your machine running smoothly and smelling fresh. This guide helps you pick the perfect product.

Key Features to Look For

When shopping, look closely at what the cleaner promises to do.

  • **Clog Removal Power:** Does it break down tough food particles, grease, and soap scum? Strong cleaners tackle serious blockages.
  • **Odor Elimination:** A great cleaner doesn’t just unclog; it removes the source of bad smells. Look for formulas that specifically target bacteria causing odors.
  • **Material Safety:** The cleaner must be safe for your dishwasher’s parts. It should not harm rubber seals, plastic, or metal components.
  • **Ease of Use:** Simple instructions mean less hassle. Some cleaners come in pre-measured packets or easy-pour bottles.
Important Materials in Drain Cleaners

Drain cleaners use different ingredients to get the job done. Understanding these helps you choose between chemical and natural options.

Chemical Cleaners

These often use strong chemicals like sodium hydroxide (lye) or sulfuric acid. They dissolve tough clogs quickly. However, these chemicals need careful handling.

Enzymatic Cleaners

These cleaners use beneficial bacteria and enzymes. These tiny helpers “eat” the organic waste (food, grease) stuck in your drain. They work slower but are generally safer for pipes and the environment.

Natural Alternatives

Many people prefer baking soda and vinegar. This combination creates a fizzing reaction that can loosen light buildup. It is a gentle option for maintenance cleaning.

Factors That Improve or Reduce Quality

What makes one cleaner better than another? Quality depends on effectiveness and safety.

Factors Improving Quality
  • **Concentration:** Highly concentrated formulas often work faster and require less product.
  • **Residue-Free Formula:** The best cleaners rinse away completely, leaving no harmful film inside your machine.
  • **Compatibility Certification:** If the packaging says it is safe for dishwashers, it usually means the manufacturer tested it thoroughly.
Factors Reducing Quality
  • **Harsh Fumes:** Cleaners that produce very strong, irritating fumes might mean the product is too harsh for your machine’s seals over time.
  • **Slow Action:** If a cleaner requires you to wait many hours for light clogs, it might not be powerful enough for regular use.
  • **Incomplete Rinse:** Cleaners that leave a soapy or gritty residue behind reduce the overall performance of your dishwasher.
User Experience and Use Cases

How you use the cleaner matters just as much as what you buy.

When to Use a Drain Cleaner

You should use a cleaner in a few situations:

  • **Regular Maintenance:** Use a gentler, enzymatic cleaner once a month to prevent future problems.
  • **Slow Draining:** If your dishwasher is leaving a puddle of cloudy water after a cycle, it is time for a deep clean.
  • **Foul Odors:** If you open the dishwasher and smell something unpleasant, a cleaning treatment is necessary.
Tips for a Good Experience

Always follow the directions exactly. For strong chemical cleaners, wear gloves and ensure good ventilation. For enzymatic cleaners, run the dishwasher empty on a hot cycle after treatment to flush everything out. A positive user experience means a clean machine without damage.


10 Frequently Asked Questions (FAQ) About Dishwasher Drain Cleaners

Q: How often should I use a dishwasher drain cleaner?

A: For maintenance, use a gentle cleaner once a month. If you have frequent clogs, you might need a stronger cleaner every three months.

Q: Can I use regular sink drain cleaner in my dishwasher?

A: It is best not to. Regular sink cleaners are often too harsh for the smaller, more delicate hoses and seals inside a dishwasher.

Q: Will drain cleaner damage the rubber seals in my dishwasher?

A: High-quality, dishwasher-specific cleaners are formulated to be safe. Very strong, harsh chemicals, however, can dry out or weaken rubber seals over time.

Q: Can I run a load of dishes after using the cleaner?

A: No. You should always run an empty cycle with hot water after using any drain cleaner to fully flush the product out of the system before washing dishes again.

Q: What is the best cleaner for getting rid of bad smells?

A: Enzymatic cleaners are often superior for odors because they break down the smelly bacteria that cause the smell, instead of just masking it.

Q: How do I know if my dishwasher drain is actually clogged?

A: The main sign is water pooling at the bottom of the tub after the wash cycle finishes, or water draining very slowly.

Q: Are baking soda and vinegar effective for deep clogs?

A: Baking soda and vinegar work well for light buildup and maintenance. They usually cannot clear a serious, tough grease clog.

Q: Should I use the cleaner when the dishwasher is empty?

A: Yes. Drain cleaners are designed to work directly on the internal plumbing and drain lines, so you must run the machine empty.

Q: What is the difference between a descaler and a drain cleaner?

A: A drain cleaner targets physical blockages like food and grease. A descaler specifically targets mineral buildup, like limescale, caused by hard water.

Q: How long does an enzymatic cleaner take to work?

A: Enzymatic cleaners usually require more time. They often need several hours, or sometimes overnight, to fully digest the buildup.