Sodium Metabisulphite - Campden Powder (1 kg)
Sodium Metabisulfite (SMS) prevents wild yeast, bacteria growth, and oxidation in your wine. Sodium Metabisulfite also works well as a sanitizer for your wine making equipment.
Wild Yeast: 1/4 teaspoon per 5 gallons of must.
Sanitation: 2 oz. to 1 gallon of water.