METHOD FOR PRODUCTION OF GRAPE WINE Russian patent published in 1997 - IPC

FIELD: production of wine. SUBSTANCE: dry grape half-finished wine products are blended and taste aromatic additive are added into it, quantity of said additive is 0.3-0.5 kg per 1000 dal of desired product. Oak concentrate is also added, its quantity being 1-2 dal per 1000 dal of desired product. Said concentrate is prepared by three-stepped flooding of oak extract (its humidity being 6-8 %) by aqueous-alcohol liquid, sustaining at the first, second, and at the third step within 7, 5 and 2-3 days, respectively. Said sustaining takes place at periodic mixing and it is followed by separation of liquid phase against precipitate. Fortress of said liquid being used at the first, second and at the third step is 65-70 vol %, 40-45 vol % and 20-25 vol %, respectively. Thus obtained blend is then treated, filtered and bottled. To prepare wine having sugar conditions 65-75 % sugar syrup or concentrate of grape wine are added, their quantities are so that they provide desired conditions. EFFECT: improved efficiency. 3 cl