Degrees balling is commonly used in europe to measure the amount of fermentable material present in a beer prior to fermentation ; such a figure directly relates to the finished beer ' s alcoholic content 这种欧洲人的常用表达方法,用来测定发酵麦芽浆中的可发酵成分量,这个数值直接影响到啤酒的酒精含量。