Enzyme prevents malolactic fermentation. Usage, approx. 1/4 oz per 6 gallons. 2 oz will trat 50 gallons at 5% solution to produce 275 ppm. For 6 gallon batches dissolve 2.25 level tsp in 4 oz of hot water. Stir gently, let rest for 45 minutes and repeat until mixture is clear.