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.
