Cicerone Certified Beer Server Practice Test

Storing beer away from light helps to prevent which of the following flavors?

1. Butter

2. Paper

3. Skunk

4. Vinegar

The correct answer is: Skunk

Storing beer away from light helps to prevent the "skunk" flavor. This is because exposure to light can cause a chemical reaction in the hops used to make beer, leading to the production of a compound called 3-methyl-2-butene-1-thiol. This compound is responsible for the distinct "skunky" aroma and flavor often associated with beer bottles that have been left out in the sun. Options A, B, and D are all flavors that can be caused by other factors such as improper brewing techniques or the presence of contaminants in the beer itself. However, improper storage and exposure to light specifically can contribute to the development of the "skunky" flavor in beer.