 Winexpert Grape Concentrate comes in a 1 Liter bottle. It can be added to wine to increase color, flavor, and sweetness and does not contain any stabilizers. The concentration is three times regular juice and the Brix is 68. $14.99 |  Winexpert Grape Concentrate comes in a 1 Liter bottle. It can be added to wine to increase color, flavor, and sweetness and does not contain any stabilizers. The concentration is three times regular juice and the Brix is 68. $19.99 |