Trivia: What salad dressing ingredient can help clean limescale?
Oil
Salt
Vinegar
Mustard
The correct answer is Vinegar
So why is this answer correct? : Limescale is white, crusty, and hard, and is much more challenging to eliminate than other issues like soap scum. It appears in places touched by hard water, such as bathroom tiles, toilets, faucets, kettles, and washing machines. Limescale is composed of calcium and carbonate ions from hard water, which are rich in minerals and salts. Installing a water softener and cleaning with vinegar and pumice stones are some of the best ways to eliminate limescale.