One would think that the interior of a washing machine would be the cleanest place in a home since it’s continually being filled with soap and water. However, over time the interior of your washing machine can build up hard water film. Additionally, it can harbor mold and bacteria.
To remedy these problems, pour a quart of white vinegar into the wash tub and run the machine through a hot wash cycle. Do this about every three months to keep the tub of your machine in tip top shape.