Get a gallon of juice to make a gallon of wine. That makes the best wine. The more juice, the more flavor. Check the SG. If it is too high dilute it with water, if too low add sugar to desired SG. Be sure to check the acidity and adjust. I look for Sorbate in the ingredients when I buy store juice. Also, look for 100% pure (real) juice. Many are flavored apple/pear/other berry juice and most label are very misleading. Read the ingredients list carefully. I have made wine from Pom brand Pomegranate juice.