• One Grape cluster = One glass of wine
• 75 grapes = One cluster
• 4 clusters = One bottle
• 40 clusters = One vine
• One vine = 10 bottles
• 1200 clusters = One barrel
• One barrel = 60 gallons
• 60 gallons = 25 cases
• 30 vines = One barrel
• 400 vines = One acre
• One acre = Five tons
• Five tons = 332 cases
• One barrel of wine equals 20 cases, which equals 1,200 glasses.
• A ton of grapes makes about 720 bottles of wine, or 60 cases.
• One vine annually produces between 4 and 6 bottles of wine, or between 20 and 30 glasses.
• Each bottle of wine contains about 2.8 pounds of grapes. That means each five-ounce glass of wine contains a little over half a pound of grapes.
• There are between 35 to 60 clusters of grapes per vine.
• One acre of land is home to between 450 and 600 vines.
• If California were a nation it would be the 4th leading wine producing country in the world -- after France, Italy, and Spain in that order.
• There are approximately 850 wineries in California. Roughly half of these sell less than 5,000 cases per year.
* Facts are based on estimates. Exact figures may vary based on yields, planting widths, age of vines and wine grape variety among other factors.