What is Brewing?
'''Brewing''' is the process of making [[beer]]. It is usually made in a [[brewery]], though it can be made at home.<ref>{{cite book| last1 = Lewis| first1 = Michael J.| last2 = Young| first2 = Tom W.| title = Brewing| url = https://books.google.com/books?id=cr9Pv0gefCQC| year = 2002| publisher = Springer Science & Business Media| isbn = 978-0-306-47274-9 }}</ref> It is made by adding yeast that [[Fermentation|ferment]] [[malt]], [[barley]] or [[sugar]] into a large vat. Ethanol is produced by yeasts using up the energy from the mixture (which the yeasts digest into glucose) because there is no oxygen in the vat. ==References== {{reflist}} [[Category:Beer| ]] {{stub}}