KMS is a white crystalline powder with a pungent sulfur smell. It acts as a great food preservative. Potassium Meta Bi-sulphite helps to preserve natural color, aroma, and freshness of food. It also protects the food against bacteria. Great companion for winemaking, when added to wine bottles it helps prevent the growth of mold and bacteria and also improve the flavor of the wine. It is a potent anti-oxidant and helps to preserve all kinds of fruits and vegetables. Store in an airtight container in a cold and dry place for increased shelf life.*Image is for representation purpose only, actual product may vary.