Cleaning bathroom grout - list shows the best home remedies for black stains. vinegar kills the mold while the bleach lightens the black discoloration.
If there is a black film on the joints in the shower, then it is mold. You should act quickly here, because the black spots not only look unsightly, they can also be dangerous to your health. LUDWIGSHAFEN24 has summarized the home remedies in a list: baking powder toothpaste soda Vinegar essence toothbrush.