At Times Like This You Need a True Friend
Raise a glass to the science of beer - Telegraph
Dogs may be man's best friend, but there is another species that has been with us for at least as long, and that has, arguably, made a greater contribution to human happiness and welfare than any quadruped. The species in question, the yeast, Saccharomyces cerevisiae, may be less cuddly, but thanks to the deceptively simple conversion of sugars into alcohol and carbon dioxide, it has an almost symbiotic relationship with us. The discovery of fermentation several millennia ago led to two practices that lie at the heart of what I believe makes us human: baking and brewing.