(1)ipa beer: only malt, hops, yeast and water are used for brewing, and no artificial additives are added. Compared with industrial beer, malt content is more, hops are added more, and the brewed wort is thicker. Usually, when brewing craft beer, you don't need to think too much about the cost, and most of them will choose the best raw materials for brewing.

(2) Industrial beer: It is also brewed with malt, hops, yeast and water, but in order to pursue the cost, more raw materials such as rice, corn and starch are used instead of malt. The beer wort brewed in this way has a very low concentration and a light taste.

2. The fermentation process of craft beer and industrial beer is different:

(1)ipa beer: Al process is mostly used, in which yeast works at the top of fermentation tank and floats above liquor, and the fermentation temperature is generally controlled at 10-20℃. Fermentation tanks are usually small and are not filtered and sterilized after fermentation.

(2) Industrial beer: Lager process is mostly used, and the yeast works at the bottom of the fermentation tank and sinks below the liquor, and the fermentation temperature is generally controlled below 10℃. The fermentation tank is large, and after fermentation, filtration and pasteurization are usually used to increase the shelf life of beer.

3. The fermentation time is different. In addition to the fermentation process, the fermentation time of craft beer and industrial beer is also very different.

(1)ipa beer: Because there is no need to care too much about the cost, fermentation time is often not particularly valued, and time cost will not be considered too much. The fermentation time of the most traditional craft beer can be as long as 2 months, which makes the beer fully fermented, with higher wort concentration and stronger flavor.

(2) Industrial beer: For industrial beer, time is money, so the fermentation time of industrial beer is usually only about 7 days, so the fermentation will not be particularly sufficient, resulting in low wort concentration and light flavor.