Bathroom cleaning divides people: there are those who hate it and those who, for some reason, enjoy the task. However, both groups have probably never noticed the presence of the black slime that exists in almost every bathroom. It is a dark, gelatinous substance that accumulates in the sink drain over the days, formed by a combination of personal hygiene products, hair, and dead skin cells.
According to an interview with plumber Hendrik Vandepoll by HuffPost, this substance is "extremely common" and is a biofilm that thrives in the moisture of the sink drain. The process begins when bacteria and other microorganisms create a sticky film that retains residue such as toothpaste, soap, shaving cream, and skin cells.
The problem is that this buildup can cause bad odors and, in more severe cases, clogs. Therefore, it is important to maintain a preventive cleaning routine for bathroom drains to avoid excessive buildup of this substance.
