The genius trick to clean the washing machine drawer: like new it will be rid of mold

Leave the door open after the wash cycle
Golden rule: always remember to leave the washing machine door open after washing your clothes, to properly air the drum. If you keep it closed, air does not enter and bacteria will develop due to the excess humidity inside.

Wipe the door seal after each wash
Precisely, speaking of humidity, also make sure to dry the rubber seal of the door well. Use a clean cloth after each wash. If you fail to do this, water in the seal can quickly cause bad odors.