炎夏来临,又到了啤酒热销的时节。很多人喜欢喝啤酒,可是并不知道喝啤酒还大有学问呢!啤酒以大麦芽及啤酒花为主要原料,经糖化、发酵等工序酿制而成,故又称麦酒。啤酒的酿制通常还以大米或玉米做辅料。啤酒的酿造可分为上面发酵与下面发酵两种方法,前者用上面酵母在较高的温度下发酵,时间较短;后者以下面酵母在低温下发酵,时 The advent of summer, went to the beer selling season. Many people like to drink beer, but do not know how to drink beer is also learned! Beer to barley malt and hops as the main raw material, saccharification, fermentation and other processes brewing, it is also known as ale. Beer brewing is usually done with rice or corn as an excipient. Beer brewing can be divided into the above fermentation and the following two methods of fermentation, the former with the yeast above fermentation at a higher temperature, a shorter time; the latter to the following yeast fermentation at low temperatures, when