For treatment of new barrels to remove excess tannin.
1 lb. per 5 gallons of hot water, Soak in barrel for 3 days. Drain & flush 3 times with water. Rinse with a solution of 2 oz. Sodium Sulphite, 1 oz. Citric Acid & 2 gallons water.

Contains: Sodium Sesquicarbonate, Soda Ash & Lye.