Potassium Campden Tablets

Contains potassium metabisulphite and is a convenient way to accurately sulphite wine. Each tablet contains 550 mg of active sulphite per tablet. Two crushed tablets equal 1/4 teaspoon. In wine, used to kill naturally occurring microorganisms and prevent spoilage. Also works as an antioxidant. Add at a rate of 1 tab/gallon to achieve 75 ppm free SO2.   Can also be added to water to remove chloramine (1 tab is sufficient for roughly 5-20 gallons)