Step 1: Empty the dishwasher
If you can remove the racks, you’ll have even better access to the spray arms.
Step 2: Clean the spray arms
The best way to clear dirt or grime out of the spray arms is to use a small piece of wire or a toothpick to help dig out debris in each spray arm.
You can also use a small scrub brush and mild dish soap to clean the arms and remove anything that’s caked on.
Step 3: Remove and clean the filter
No matter how powerful of a dishwasher you have, or even if you use a natural dishwasher detergent to avoid questionable ingredients, build up can still accumulate in filters over time.
If you have an older model dishwasher:
Older model dishwashers may have a self-cleaning filter, in which case you probably won’t have to do much. Filters that are self-cleaning are often loud, a tell-tale sign your dishwasher may have one.
If you're not sure which type of filter you have:
Determine which filter you have by looking at the bottom of your dishwasher. Self-cleaning filters have holes or a grid-looking contraption over the top of the filter.
Manual-clean filters look like a round plastic piece beneath the bottom spray arms that’s removable. Remove your manual filter, if that’s what you have, and wash the removable part with hot, soapy water or with cleaning vinegar, using the scrub brush to clean all the places gunk has collected.
If large bits of food are clogging things up:
You can remove any remaining food that’s visible in the filter after each use, and then follow your dishwasher’s instruction manual to disassemble and remove the filter completely for a good scrub every few weeks.
Step 4: Scrub the racks and utensil holder
Using your small scrub brush and dish soap, clean the utensil holder and the racks wherever you see visible grime and soap scum. Food debris can easily get caught in utensil holders because of the grid design, so you’ll need small bristles to get down in the crevices to clean it properly.
Step 5: Scrub inside walls and detergent dispenser
You can also go the extra mile and use an all-purpose cleaner and sponge or microfiber cloth to clean the inside of the door and in and around the detergent holder, where buildup can accumulate. Use the small scrub brush to get where your cloth can’t reach.
Step 6: Clean the rubber seals
Every dishwasher has rubber seals around the opening of the dishwasher to help seal it closed when in use. In fact, according to research, if the rubber seals are not cleaned, it can become a place where bacteria and mold can easily grow.
Use a scrub brush or soft microfiber cloth and go to town with either cleaning vinegar or a dish soap and water mixture, paying close attention to not only the seals but also the door edges.
Step 7: Replace all the parts and run the hot wash cycle
The final step is to fill a dishwasher-safe cup with white distilled vinegar and place it on the top rack of the dishwasher. Make sure the cup doesn’t have a lid on it, and set your dishwasher on the hot wash cycle or hot water cycle. Vinegar will help break down any remaining grime and residue that’s built up while helping to eradicate odors.
