Blueberry Wine Backfill

[mspoljoric]

Hey Everybody!
I started a blueberry wine about a month ago. When I went to rack it I lost about a 1/2 gallon of wine after removing sentiment and pulp, Should I add a 3:1 grape concentrate to refill the demijohn or should I just leave it? The taste is pretty good and I didn't know if I back-fill it will it water the wine down? Would that affect the alcohol content?

 

[Yooper]

You don't want to water it down. It's important to have smaller containers after primary fermentation, for just this reason. You can add marbles (but that's a LOT of marbles!), or rack to a smaller container. After fermentation slows/ends, you want as little headspace as possible, filling to the narrowest part of the demijohn.

How much headspace do you have?

 

[mspoljoric]

Here it is. Do you think if I add the grape concentrate it would ferment that sugar as well?