Process for semi-dry and semi-sweet wine production

摘要

The invention refers to the wine industry, in particular to a priocess for demi-dry and demi-sweet wine obtaining.The invention includes must sulfitation, pasting, clearing and successive multi-stage fermentation with a posterior filtration thereof. The novelty of the invention consists in the fact that the filtration is realised by the tangential micro filtration, utilizing the anizotropic ceramic membranes as filtration element having pores dimensions of 0,2-0,4 µm at a pressure of 0,05-0,2 MPa and before the final fermentation stage the must is subjected to cooling.The technical result of the invention consists in the production of a stable wine with the originally sugar and aroma content preservation.