From this experiment, we can tell that fermentation is a long but interesting process.

Through the experiment, we found out that the production of carbon dioxide is not constant. The balloons increased and decreased in size thoughout the experiment.

Comparing the four bottles, we realised that temperature is the main factor towards the rate of fermentation as the 2 bottles in the warm environment has a higher rate of fermentation compared to the 2 bottles placed in the cooling environment.

We found out that without light exposure, there's a higher rate of fermentation compared to bottles with light exposure.

Therefore we conclude that beer ferments the fastest in a warm environment without light exposureand that there’s definite reason to why people place their ferment in dark and stuffy places in tradition brewing of beers.

Our hypothesis of
The rate of fermentation increases in the absence of light." is also proven to be correct.

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