The quantity of grapes needed to produce a gallon of wine will vary depending on the grape range, and the particular wine being made. A heavier bodied white wine like a Cabernet Sauvignon will need more grapes than a light bodied white wine like a Pinot Grigio.
To make one gallon of wine, you'll need about 30-36 pounds of grapes. This suggests that you'll need to squash 2.5-3 pounds of grapes to make one cup of wine. Click Here The amount of grapes required to produce a gallon of wine will differ depending upon the grape range, and the particular white wine being made. For instance, a much heavier bodied red wine like a Cabernet Sauvignon will require more grapes than a light bodied white wine like a Pinot Grigio. In general, it takes about 2.5-3 pounds of grapes to produce one bottle (25.4 oz) of wine.
To address your question, you would require to crush approximately 12-14 pounds of grapes to make one gallon of red wine.