A professor from Twente University has worked out that it takes 140 litres of water to make one cup of coffee, reports Wednesday’s Telegraaf.

Professor Arjen Hoekstra has developed the ‘water footprint’ which shows how much water an individual, a company or a country uses.
The method shows that producing one kilo of beef needs 16,000 litres of water and the production of a cotton shirt 2,700 litres.
The ‘water footprint’ was presented on Tuesday in London.