Sodium Metabisulfite Dosage per Gallon
The typical amount of sodium metabisulfite used as a sanitizer or antioxidant in winemaking and other applications is:
- Sanitizing Equipment: Use 2 ounces (about 4 tablespoons) of sodium metabisulfite per gallon of water.
- Wine Additive: For protecting wine or must, use approximately 1/4 teaspoon per 5 gallons of wine, which is about 1/20 teaspoon per gallon (roughly 1/64 ounce or 0.4 grams per gallon).
Note: The exact quantity depends on your purpose (sanitizing, stabilizing, etc.), and always follow the instructions provided in your recipe or on the product packaging. Excess sulfite can affect flavor and safety.