Glycerine 500 mL Sale! from $8.99 $8.99 Qty. Add to Cart Glycerine is used as a finishing formula to thicken liqueurs and wines. Reduces aging time also. Stir 30 mL (1 oz) into 750 mL (26 oz) of liqueur or 30 mL per 23 L (6 U.S. gallons) of finished wine.