People like to drink a cold beer to cool down in summer. But I don't know if you've noticed, but when you pour beer into a glass, the bubbles keep rising. And you might think that of course, the bubbles are going to go up. But the bubbles in Guinness, the world's most famous stout, are not. It has b

Phenomenon: slow clarification of the wine, more residue and poor quality.
Causes: Mainly due to improper opening of the cooling jacket, the upper temperature deviated from the process curve by 1.5 ~ 4℃, and the middle temperature of the tank was higher, resulting in strong convection of the fermentation liquid.

There are always all kinds of problems in the process of brewing beer. Especially for those who have just started to make craft beer, when they encounter these problems, the first thing that comes to mind is what is wrong with the beer equipment, but they do not consider whether they have made some