Soft mint full of long lasting minty menthol flavour What are those soft mints called? Soft mints, just like "dinner mints" and "butter mints", are soft candies, most times with a higher butter content, that dissolve easily inside one's mouth. What are soft mints made of? The ingredients for making soft mints are Pure cane sugar, invert sugar, oil of peppermint, Red 40, Red 40 Lake and lots more. How long do softmints last? Soft mints if Properly stored, will last for about 12 months at normal room temperature. Do soft mints expire? If soft mints is properly stored, it will maintain its best quality for about 12 months, but will remain safe for consumption beyond that time. The best way to know if it's gone bad is to smell and look at the soft mints: discard any that have an off smell or appearance; if mold appears, throw away the soft mints. Can soft mint help you lose weight? How To Get Soft Mint Sample Free