Sodium Metabisulfite 2 oz

You can use sodium metabisulfite to kill wild yeast and bacteria in fruit 24-36 hours before adding your yeast. Also you can use it every other racking to act as an anti-bacterial agent and help prevent oxidation. When using it as an antioxidant and bactericide - use 1/4 teaspoon to 6 gallons. To use as a sanitizer for equipment, use 2 oz. per 1 gallon of water.  Pretty much the same as campden tablets.  Dissolve sulphite in warm water before adding.