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How we discovered the true origins of a pint of lager – new research

By John Morrissey, Lecturer in Microbiology, University College Cork

Despite a surge in interest in craft beers and ales, lager continues to dominate global sales, with more than 150 billion litres consumed around the world every year.

Lager is a beer brewed at low temperatures using yeast that are described as “bottom-fermenting”. Yeast are single-celled fungi used in brewing to convert maltose to alcohol and carbon dioxide, giving beer its booziness and fizz. They are either top- or bottom-fermenting.…

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