Do not pour the mixture directly into the main cavity (the drum) of the washing machine.

Make sure nothing else is in the machine when you pour the vinegar inside.

Run the machine on the warm/hot setting. Again, make sure you don’t have any clothes or other laundry inside the machine while you run it. Otherwise, they will smell like vinegar when the cycle is done.

Use a sponge to scrub the inside of the machine. Be sure to get into all of the nooks and crannies or the interior.

Cleaning the machine while it is still on could create a dangerous situation for you or damage the machine.

You should wear rubber gloves any time you are handling bleach cleaning solution. Try to get the bleach cleaner in all of the cracks and crannies of the washing machine. You can use a Q-tip dipped in the bleach/water solution to get into really hard-to-reach areas.

A dirty seal is one of the biggest problems that leads to odor in washing machines. Cleaning this regularly can really help a lot. [6] X Research source

Use a warm washcloth to wipe down the interior. Be sure to get into all the nooks and crannies. You can also use a bit of vinegar to help sanitize the inside of your washing machine.

Let the hot water and bleach sit in the washing machine for approximately 30 minutes. Then finish running the load so the remaining traces of bleach are removed. Make sure you rinse out the bleach thoroughly before using the washing machine again. If there is any remaining bleach, it could possibly stain your laundry or anything else it comes into contact with.

Using the high-efficiency detergent on a daily basis will help keep your machine fresher longer, and will allow you to clean your washing machine less frequently.