Yeast and Making Beer

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Created by: HLeiper
Created on: 14-04-14 15:38

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Yeast and Making Beer
- Stage 1
  - Beer is made from grain - usually barely
  - Barely left to germinate - grains are dried in a kiln (Malting)
  - Malted grain is mashed up - sugary solution and hops are added
- Stage 2
  - Yeast is added and incubated - sugar ferments into alcohol
  - Ethanol die to anaerobic respiration kills yeast
  - Different species of yeast tolerate different levels of alcohol - % of beer
- Stage 3
  - Drawn off through a tap and clearing agents are added
- Stage 4
  - Pasteurised - heated to kill any yeast (tastes better not pasteurised)
  - Big companies do incase of not storing correctly and spoiling it

Comments

Report Mon 15th February, 2021 @ 10:32

Draft beer is a beer pump that's "on tap," instead of a bottle. Next time you're at a bar, or a restaurant that has a bar, take a look at the bar itself, and you'll see a row of labelled levers. Those are the bar's beers on tap, and they're generally fresher than the bottled selection.