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Water footprint of food products.

Chocolate: 24,000 liters/kilogram (L/kg)
Beef: 15,500 L/kg
Cheese: 5,000 L/kg
Pork: 4,800 L/kg
Olives: 4,400 L/kg
Chicken: 3,900 L/kg
Rice: 3,400 L/kg
Groundnuts (in shell): 3,100 L/kg
Sugar: 1,500 L/kg
Wheat Bread: 1,300 L/kg
Cow’s Milk: 250 L/glass
Cabbage: 200 L/kg
Coffee: 140 L/cup
Lettuce: 130 L/kg
Wine: 120 L/glass
Beer: 75 L/glass
Tea: 30 L/cup

Source: The Water Footprint of Food by Arjen Y. Hoekstra, University of Twente, the Netherlands. 2011.

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