Gelatin, casein, and bull blood are inadmissible in the kosher wine-making process
Only the bacteria or kosher enzymes from the bowl may be used for fermentation
All devices and utensils used for the harvest or the processing of the grapes must be cleansed under supervision
Bottles may not be filled multiple times
In the vineyard no other plants may be cross-bred with the grapes (because of the prohibition of hybridization).
Beverages manufactured from grape or grape-based derivatives may only be drunk if the grapes come from a kosher winery, prepared under strict Rabbinical Supervision