3 to 4 degrees or so. According to relevant data, the malt concentration of beer is generally 7-8 degrees, and the actual alcohol concentration of beer is only about 3-4 degrees, so don't confuse it, unlike liquor, which is more than 50 degrees. 1983 beer has different classifications, which are classified according to the original wort concentration. 1983 The main strength of beer is 18, 16, 14, 12,1,10, 8-degree beer. For example, 1983 draft beer generally has a malt degree of 8 degrees, an alcohol content of more than 3. 1%, a wort concentration of 12 degrees and an alcohol content of 3.5-4%.