What is the typical percentage of starch found in barley grain?

Barley grain is primarily composed of starch, which serves as the carbohydrate source that is crucial for the brewing process. The typical percentage of starch in barley grain ranges around 60-70%. Therefore, when considering the percentage of starch specifically, 65% is a representative figure that reflects the average starch content found in barley. This starch is essential as it is converted into fermentable sugars during the malting and mashing processes, ultimately contributing to the production of alcohol during fermentation. Understanding the starch content is fundamental for brewers, as it affects efficiency, extract yield, and ultimately the characteristics of the beer being produced.