Ever wonder how many grapes it takes to produce 1 bottle of wine?

Ever wonder how many grapes it takes to produce 1 bottle of wine? Let’s start in the vineyard with an average of 3 tons per acre, or 3000 kgs. This will yield approx. 2100 litres of juice which will be fermented and fill about 9 barrels. Each 220 litre barrel will fill about 293 bottles or 24 cases. This equates to approx. 1 kgs of grapes needed to fill 1 bottle.