Mucilage: nm Mucilage is a viscous, oily substance which appears in wine in the form of whitish filaments (see also fat disease). Mucilage is due to a macromolecule, dextran, a polymer belonging to colloids which has the particularity of swelling on contact with water. Its origin is vegetable. It comes from rotting during wet harvests. Mucilage is an evil feared by winemakers because it clogs filters. Only possibility, do...
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