One US tonne of grapes = 2,000 pounds (lbs) or 907.18 kilogrames = Approx. 60 cases of wine = 720 Bottles (75cl) = Approx. 112 vines per ton of grapes = 6.7 bottles per vine = 1.2 gallons (US) per vine or One vine per person per week, so read David Koball’s business card when vineyard manager at the Fetzer Home Ranch in Redwood Valley, Mendocino County, California.

SEE ALSO | Yields, organic v conventional