Many people consider the washing machine a self-cleaning appliance. However, this is not true and the washing machine, as any other appliance, needs proper maintenance. Mold problems are the most common, even with a new machine. It is very likely that you will notice stains and funky smell on your clothes only after using the machine for a few months.
These black stains are actually dangerous fungus that causes a number of diseases in humans.
Mold normally appears in conditions of high humidity and heat, which makes the bathroom an ideal place for the growth of fungal spores, which can easily spread through air and nest on different surfaces.