Cicerone Certified Beer Server Practice Exam

What is the primary purpose of hops in brewing?

1. To add sweetness

2. To preserve the beer

3. To enhance color

4. To increase alcohol content

The correct answer is: To preserve the beer

Hops play a crucial role in the brewing process primarily due to their natural preservative qualities. They contain compounds known as alpha acids, which not only contribute to the beer's bitterness and flavor but also have antimicrobial properties. This helps inhibit the growth of spoilage microorganisms, thereby extending the shelf life of the beer. While some might consider hops for their contribution to flavor and aroma, their most significant impact lies in their ability to act as a preservative, supporting the overall stability and longevity of the beer. Other options relate to aspects of brewing but do not accurately define the primary purpose of hops. For instance, while hops can affect bitterness, they do not add sweetness, enhance color significantly, or increase alcohol content, which is primarily determined by the fermentation of sugars derived from malt rather than hops.