Best Dishwasher Cleaners

If your dishwasher smells bad, leaves cloudy dishes, or seems less effective, the best cleaners to fix it quickly are:

• Best overall: Affresh Dishwasher Cleaner — reliable monthly maintenance for odor + residue
• Best deep clean: Finish Dishwasher Cleaner — strong against grease and hidden buildup
• Best for hard water: Glisten Dishwasher Cleaner — removes limescale and mineral deposits
• Best budget option: Cascade Dishwasher Cleaner — simple, affordable maintenance cleaning
• Best natural-style cleaner: Lemi Shine Dishwasher Cleaner — citric-acid formula for mineral buildup

Bottom line: If you only pick one, go with Affresh Dishwasher Cleaner for routine maintenance, or Finish Dishwasher Cleaner if your dishwasher already feels noticeably dirty or slow.

If your dishwasher smells musty even after a full cycle, leaves a cloudy film on glassware, or seems to “clean less cleanly” than it used to, those are usually signs of hidden grease, limescale, or food residue building up inside the machine. Over time, these deposits clog spray arms, coat filters, and trap odors that no regular detergent cycle can fully remove.

That’s exactly where dishwasher cleaners come in—they’re designed to restore performance, eliminate buildup, and reset your machine’s hygiene without needing repairs.

What dishwasher buildup actually does to your machine

Inside a dishwasher, you can’t see what’s happening during hundreds of wash cycles. But grease from food, hard water minerals, and detergent residue slowly accumulate on internal parts like the spray arms, filter, and heating element.

This leads to a few familiar problems:

• Persistent “wet cardboard” or sour smells after cycles
• Cloudy or streaky glassware
• Food particles sticking to dishes even after washing
• Longer cycles that don’t seem as effective

These symptoms usually mean the dishwasher itself—not your detergent—is the problem.

Best overall dishwasher cleaners

These are the most consistently effective options based on performance, ease of use, and availability.

Affresh Dishwasher Cleaner

One of the most widely recommended options, this cleaner targets odor-causing residue and mineral buildup deep inside the machine. It’s especially useful for routine maintenance and is often used monthly to keep dishwashers fresh and efficient.

Best for: Regular maintenance and odor control
Strength: Balanced cleaning of grease and buildup
Limit: Not designed for heavy descaling in very hard water areas

Finish Dishwasher Cleaner

A strong deep-cleaning option that focuses on breaking down grease and limescale in hidden parts like spray arms and pipes. It’s commonly used when performance drops noticeably.

Best for: Deep cleaning and restoring performance
Strength: Powerful grease + limescale removal
Limit: Strong chemical scent for some users

Cascade Dishwasher Cleaner

A convenient monthly-use cleaner designed to remove odor and buildup with minimal effort. You simply toss it in and run a cycle.

Best for: Easy, no-fuss maintenance
Strength: Convenience + decent odor removal
Limit: Less intensive than heavy-duty cleaners

Best for hard water and mineral buildup

Glisten Dishwasher Cleaner

This option is especially helpful if you notice chalky residue or cloudy glassware from hard water. It’s formulated to break down mineral deposits like calcium and lime that cling to internal surfaces.

Best for: Hard water homes
Strength: Mineral and rust removal
Limit: Often used as a targeted treatment rather than daily maintenance

Budget-friendly and natural-style options

Lemi Shine Dishwasher Cleaner

A citric-acid-based cleaner that focuses on dissolving hard water deposits and freshening the interior. It’s often chosen by people who prefer a more “natural acid-based” cleaning approach.

Best for: Hard water + lighter chemical approach
Strength: Citric acid tackles limescale effectively
Limit: May require more frequent use in heavy buildup cases

How to actually use dishwasher cleaners (most people do this wrong)

Even the best product won’t work well if the dishwasher itself is still clogged or poorly maintained.

A proper cleaning cycle usually looks like this:

1. Empty the dishwasher completely
2. Remove and rinse the filter (this step matters more than most cleaners)
3. Place the cleaner as directed (bottle, pod, or tablet)
4. Run the hottest, longest cycle available
5. Leave the door slightly open afterward to dry out moisture

For heavy odor or buildup, a second cycle is sometimes needed.

When a cleaner won’t fix the problem

If you still notice issues after using a cleaner, the cause may not be buildup alone. Common overlooked problems include:

• Clogged spray arm holes
• A dirty or damaged filter
• Drain hose blockages
• Overloading dishes so water can’t circulate

In those cases, cleaning products help—but they won’t replace basic mechanical maintenance.

Bottom line

Dishwasher cleaners aren’t just “fresheners”—they’re maintenance tools that restore the internal environment your detergent can’t reach. If your machine smells off or dishes aren’t coming out as clean as they used to, a monthly cycle with a product like Affresh Dishwasher Cleaner or Finish Dishwasher Cleaner is often enough to bring it back to normal performance.

The key is consistency: a clean dishwasher tends to stay clean, but once buildup is ignored for too long, it becomes progressively harder to reverse.