WINE CLARIFICATION

In the wine processing industry, cloudiness that creates an adverse consumer reaction must be removed. Cloudiness and its removal has been an important issue in this industry for centuries. Wine grade VOLCLAY BENTONITE, a low cost mineral colloid can be effectively used as a solution to this problem.

Although primary filtration takes care of large particles, macromolecular solids, which create colloidal suspension, pass readily through filter cloths and remain in the final product.

In the case of wine clarification, undesirable suspended (positively charged) proteins will cause cloudiness. They are true colloids and obey colloidal laws, therefore one excellent approach is to attack them with equally strong colloids of a different type.

VOLCLAY WG POWDER or GRANULAR bentonite is a true colloid, negatively charged which, when completely dispersed in water is added to the cloudy wine. Dispersed particles of Volclay have a uniform negative surface charge, thus attract and hold the positively charged protein colloids in suspension. The two colloids neutralise each other and form a precipitate, which settles to be filtered without difficulty.

VOLCLAY Wine Grade bentonite is available at low cost through specialist distributors nation wide.