To prevent clogs, odors, and poor cleaning performance, you should clean your dishwasher filter at least once a month for typical household use. However, the ideal frequency depends on your usage patterns and dish-loading habits.
Recommended Cleaning Frequency by Usage
Key Factors That Affect Cleaning Frequency
How much you scrape dishes: If you don’t scrape food off before loading, clean more frequently (every 1–2 weeks)
Grease and food content: Heavy grease, oily foods, and starchy residues clog filters faster
Water hardness: Hard water areas cause mineral buildup, requiring more frequent cleaning
Daily vs. occasional use: Daily users need more frequent cleaning than occasional users
Filter type: Manual mesh filters need monthly cleaning; self-cleaning filters need less maintenance
Signs Your Filter Needs Cleaning (Clean Immediately)
Water not draining properly or standing water at the bottom
Dishes coming out dirty with food residue
Foul or musty odors when opening the dishwasher
Slow drainage or gurgling sounds during the cycle
Visible food particles or grease on the filter mesh
How to Clean Your Dishwasher Filter
Remove the filter from the bottom of the dishwasher tub
Rinse under warm running water to wash away debris
Gently scrub with a soft brush (old toothbrush works well) to remove stuck-on particles
Check the sump area for any remaining food fragments or glass
Reinstall the filter securely before running the next cycle