Review: Froth! by Mark Denny

THANKS to Mark Denny’s entertaining little book on the “science of beer”, I now know that for many years I have taken great delight in drinking yeast excrement. Alcohol, that is. Cheers Mark, I’ll bear that in mind on my next visit to the pub. As Denny points out, alcohol is the waste that yeast cells churn out as they ferment the sugars in grains of malted barley into booze. It is also the biological weapon they have evolved to stop rival bugs stealing their dinner.

Froth!…