4.5 liters for every liter of beer it made.

http://www.reuters.com/article/ousiv/idUSTRE55F05420090616?pageNumber=1&virtualBrandChannel=0

Water is becoming scarcer, raising a fear that so-far manageable price increases could spike and leading drink companies to take action to maintain access to water and fight their image as water hogs.

"Water is the new oil," said Steve Dixon, who manages the Global Beverage Fund at Arnhold & S. Bleichroeder, repeating what has become a mantra as climate change and population growth tax water supplies.

"As an investor, I'm not concerned about the reality," Dixon said, guessing there will always be enough water overall. "But I'm aware of the perceptions ... and you can't totally shrug it off because perceptions are important."

About a third of the world's people now live in areas of water stress, said Brooke Barton, manager of corporate accountability for Ceres, a network of environmental groups and investors seeking to address sustainability challenges. By 2025, she said it will be more like two-thirds.

COST

Water is still cheap, but that is changing.

"(Water) is currently not a very big cost. The issue is where it will it go in the future," said Andy Wales, head of sustainable development for brewer SABMiller, which used 94.5 billion liters of water in its latest fiscal year. That works out to 4.5 liters for every liter of beer it made.