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Food grade Potassium Metabisulphite as a white crystalline powder, which provides a convenient way of adding measured quantities of sulphur dioxide.
Potassium Metabisulphite is a permitted derivative form of sulphur dioxide and is a well established proven preservative which is used in the brewing, wine and food industries. It is also known as E224. Added to wine and cider at the pH range of between 3.6 and 4.4 it prohibits the growth of wild yeasts, bacteria and fungi giving effective prevention of biological spoilage. In addition to this its antioxidant properties confer
Potassium metabisulphite is added at any point in the process when used as a preservative.
Rates of Use
1.75 gms Potassium Metabisulphite per hectolitre → 10 ppm sulphur dioxide (SO2)