Features:

Potassium meta-bisulfite
1/4 teasp adds 5 ppm to 5 gallons of must or wine
5 lb (2.26 kg)
Dissolve in a small amount of wine and stir gently into your vessel

Details: Potassium Meta-bisulfite, or SO2 as it is often referred by, is used to help as well as oxidation. The most common form of Meta-bisulfite is as a powder which is fixed with potassium or sodium. This versions is fixed with Potassium. 1/4 tsp adds 50 ppm to 5 gallons of must or wine. The exact amount needed to effectively protect the wine is determined by the wine’s ph. Dissolve in a small amount of wine and stir gently into your vessel.

CellarScience-AD500A Potassium Metabisulfite - SO2 (5 lb)