New yeast strains can produce untapped flavours of lager

As frequent pub-goers will be well aware, beers come in two varieties—lagers and ales. Lagers are brewed at cool temperatures and typically have a crisp taste. Ales, known to be spicy and flavourful, are brewed in the warmth. Both get their distinctive flavours from fermentation—the conversion of sugars into alcohol and carbon dioxide—by single-celled fungi known as yeast.