Endozym Glucalyse can be utilized to improve wine clarification or to optimize wine refinement. Glucans are complex polysaccharides that, in wine, limit clarification and considerably hinder filtration. Their presence in musts and wines is often caused by the attack of Botrytis cinerea on grapes. Endozym Glucalyse is a pectolitic preparation with B-1,3 and B-1,6 glucanase activities with high concentration, particularly studied for the complete hydrolysis of the clogging β-glucans. Its utilization is particularly effective to optimize wine filtration and clarification.