The peculiar smell in beer has always been a headache for brewers, although some peculiar smells are characteristic in some beer styles. But acetaldehyde is a special taste, because it may cause you to have a hangover, which is very detrimental to your health.

Sometimes, we will find that there are obvious turbid substances in beer, especially those who drink beer often, the chance of encountering this kind of thing will be greater, so what is the substance that causes the non-biological turbidity of beer?