What is a benefit of hard water in brewing?

Hard water, which contains high levels of minerals such as calcium and magnesium, plays a crucial role in brewing, particularly in relation to yeast health and the clarity of the final product. Calcium, one of the most significant minerals found in hard water, aids in the proper functioning of yeast during fermentation. It helps stabilize the yeast cell structure, contributing to healthy yeast activity and fermentation performance.

Additionally, the presence of calcium can enhance the formation of proteins and polyphenols, which are important for beer clarity. This interaction allows for better clarity in the brewing process by promoting the formation of precipitates that can be removed, resulting in a clearer beer.

In contrast, the other options do not accurately reflect the role of hard water in brewing. While hard water does have various effects on brewing, the primary benefits linked to yeast health and clarity highlight its importance in creating high-quality beer.