Grapes are one of the higher acid fruits, and the hot grape juice only needs to be processed 5 minutes in a boiling water bath. Prepare the juice by placing the grapes in a saucepan and adding boiling ...
The grapes are scooped through a crusher, smashed and destemmed. They are then stored in large stainless steel vats to ferment, Vahling said. For red grapes, the skins are left on during the ...