Why is Qingdao, Shandong Province rich in beer?

Qingdao is rich in beer, which has both geographical and natural factors and historical reasons. From the geographical and natural factors, the main raw materials of beer are malt and hops, and Qingdao is a big grain province, which is rich in these things. Due to historical reasons, German beer is very famous and has a long history. Qingdao was colonized by Germany, and Germany built its first brewery in Qingdao as early as 1903.