The WineEasy is truly a revolutionary new process to ferment and press wine. Since the wine is pressed in the same vessel in which it is fermented we configure it in a unique way too, selling the fermenting vat separately from the pressing system. First, select your batch size noting that the fermenters are designed to be filled about 75% full of must (to allow for cap rise), and typical press efficiencies will be about 60-70%. This 20 Gallon vat will hold a maximum must weight of 150 pounds and will yield 10 gallons. *Finished wine and must weight are approximations only due to varietal differences and other variables.