Why is my soap sweating?

Why is my soap sweating?

You have just got your soap and can't wait to use it. You set out a bar in your guest bathroom. You return later to notice tiny beads of sweat all over the soap, HELP! " My soap has something wrong with it !" No, your soap is doing what any bar of soap high in humectants would do. This is normal. A humectant is a substance that readily absorbs moisture from its surroundings. Glycerin is a humectant that is a natural bi-product of saponification- the chemical reaction that produces soap. Pure glycerin soap will always sweat under humid weather. To stop this process you will need to "cure" your soap. This is very simply to do, just place your glycerin soap under running water and put on a raised soap rack to dry. This should set the soap and stop it from sweating. This is usually seen most in pure glycerin soap !  ^  ^

reference: Diamond K Goats, 2007