If an item is faulty, does not fulfil its intended purpose, or does not last for a reasonable time, a full refund will be issued. We do not offer refunds for change of mind.
Potassium metabisulfite is one of the most important winemaking compounds. It is an antioxidant and bactericide that releases sulfur dioxide into wine must. Use 1/4 teaspoon per five gallons to add 50 ppm.