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The science of alcohol
The science of alcohol

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7 Your homebrew experiment

Your homebrew should now have been underway for 3 weeks. As you have just seen, contamination by bacteria is the main way that your beer can be spoiled. At this stage, a visual examination alone may not be sufficient to reveal whether your beer has been spoiled – tasting and smelling the final product is normally the only indication that your beer has been contaminated. Provided you have followed the instructions provided with your homebrew kit, contamination by bacteria is very unlikely.