Barolkleen - treatment to remove excess tannins in barrels, 1 LB. Contains Sodium Sesquicarbonate, Soda Ash & Lye.
Use 1 LB per 5 gallons of hot water and leave in barrel for three days. Drain & flush with water 3 times. Rinse with a solution of 2 oz sodium metabisulfite, 1 oz citric acid, 2 gallons warm water. Final rinse water only.