英语听力：自然百科 啤酒是如何酿成的—6（在线收听）

 This converts more starches to fermentable sugars which reduces the calories in the beer overall, an original bud weiser brewed in the US contains 5% of alcohol, 143 calories and 10.6 carbs, while a bud light weighs in at 4.2% alcohol, 110 calories and 6.6 carbs. Now if what you are looking for is a beer containing no alcohol, proceed with caution, beer labeled non alcoholic doesn't mean it contains zero alcohol, the legal definition in the US is less than 0.5% alcohol by volume, so the amount can vary by brewer, with the variety of styles across the globe, you can think the family of beer is the united nations of beverages. Barley is the powerhouse ingredient of beer, this cereal grain not only gives beer some of its great flavour and color, but it also provides a key element for the brewing process.