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Which of the following constitutes the majority of beer by weight?

  1. Alcohol

  2. Water

  3. Hops

  4. Malt

The correct answer is: Water

Water constitutes the majority of beer by weight, accounting for approximately 90-95% of the total composition depending on the style and brewing process. The high water content is essential as it serves as the solvent in which all other ingredients, such as malt, hops, and yeast, are dissolved and interact during the brewing process. Water also influences the beer's flavors, mouthfeel, and even the brewing efficiency, making it a critical component of beer. While malt and hops contribute significantly to the flavor and aroma of beer, their weight is substantially less than that of water. Alcohol, which is produced during fermentation, comprises a small percentage of the total weight of beer, further emphasizing the dominance of water in the overall composition. Therefore, understanding the role of water is crucial for comprehending the fundamental characteristics of beer.