Sorbistat K or Potassium Sorbate is used as a preservative in wine. Helps stabilize wines allowing you to cellar wines much longer. Should be seriously considered for homemade wines. This packet is enough for 10 gallons of wine.

Potassium Sorbate is a yeast inhibitor to use with wines containing residual sugar. If a malolactic fermentation occurs after using potassium sorbate you will get a distinct off-odor, therefore you should always use potassium metabisulphite with it. Normal use is 1 to 1-1/4 grams per gallon. Store potassium sorbate in a dry place out of direct sunlight. Typical shelf life is only 6 to 8 months.>