Originally Posted by shirlthegirl43

Hi and welcome to the vine. You can indeed make wine from grape juice. Make sure you check the SG before adding any sugar as some juices are sweet enough without the addition of extra sugar.

"Many variables with this one, just make sure that there are no preservatives in them (pottasium sorbate)

3 Litres any juice cartons
1 Litre of white or red grape juice
1 lb Sugar
1 tsp Pectolase
1 tsp nutrient
yeast

Emptied juice into Demi up to the 3/4 gallon mark, add pectolase, alter SG up to around 1080/90 ish, add the nutrient and yeast leave to ferment in demi (with airlock) after 3/4 days top up with the grape juice,ferment out,should be ready to drink within 8 weeks."