英语听力：自然百科 啤酒是如何酿成的—4
时间：2014-10-30 08:38:32
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（单词翻译）
After cooling, yeast1 is added to start fermentation stage. Yeast allows beers of all flavor to peak while it converses2 the remaining sugar into carbon dioxide and alcohol,giving beers a carbonation and alcohol content. So the brewers are using the same for basic ingredient and the same basic brewing3 processes. How do we end up with thousands of unique styles of beer to choose from.
Beer making is not the wild wide wises, well wide open world. From the home brewers to the big guys, there is a room for a lot creative cookery.
I traveled the world and met lots of brewers and one unique aspect about people that make beers, that’s the passion about what they are doing.
Great brewers likes queen chefs, using their own special combinations of
barley4,
hops5 and bubbling yeast. Another factor that affect the style of beer is the alcohol content. How much alcohol is bound to the style of beer is
partially6 determined7 by the government regulations which differ in each country and state. But mostly it’s driven by consumer demand. The percentage of alcohol in a single beer runs from an average 3% to over 10 and even besides 17.5 in some specialty beers
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