Manufacturers contract to purchase grapes from growers. Grape specifications tend to be very rigid. Grapes may change radically from harvest to harvest.
 

When the grapes are ripe they are harvested and taken to a winery.
 

The grape juice is pumped into a settling tank and the tank is crash-chilled below freezing.
 

When the juice almost clear, it is filtered and taken to the kit facility.
 

After Quality Control, the juices and concentrates are blended into the different kits.
 

After pasteurization the each bag is filled to a very strict weight tolerance.
 

The bags are automatically capped and loaded into the kit boxes and shipped to Classic Wine Makers.