Brewing 3.0 / 5 based on 1 rating ? BiologyGCSEOCR Created by: CamCreated on: 08-06-13 20:20 How is sugar obtained from barley/grain? Allowed to germinate, so starch broken into sugar; dried in a kiln (malting); mashed up to make sugary solution, sieved; hops added to give flavour 1 of 5 What happens if oxygen is present when the yeast-solution is fermenting? Vinegar is made instead of beer 2 of 5 Why is alcohol distilled? To increase the concentration of the alcohol 3 of 5 Why is beer pasteurised? To completely stop fermentation, and kill any leftover yeast 4 of 5 What temperature is used in distillation? Why? 78°C - Alcohol turns to vapour at this point, but water doesn't 5 of 5
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