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A bit of fiber makes for sudsier beer

Understanding origins of bubbles suggests new way to foam up a slow-pouring stout

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6:06pm, March 17, 2011

This St. Patrick’s Day, raise a glass to the beer researchers of Ireland. By figuring out how bubbles form in stout beers, a team of mathematicians has come up with an idea that could better unleash the foamy head of Guinness: beer cans lined with a material similar to a coffee filter.

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