Potassium Metabisulfite 50g

The most well-known preservative used in wine production is potassium bisulfite or commonly Potassium Metabisulfite.It works as follows:a) protects the must and grape pulp from oxidation (antioxidant action).b) acts selectively on wine bacteria (acetic, lactic, pyruvic, etc.) inhibiting their activity, without hindering the activity of yeasts, thus making alcoholic fermentation safer and more reliable.