7brew Basics Practice Test 2026 – The Complete All-in-One Guide to Mastering Your Exam!

Beer color is reported as SRM, the Standard Reference Method. This value comes from how much light at 430 nm the beer absorbs. Using a spectrophotometer with a standard path length, the beer’s absorbance is converted to an SRM value that places the beer on a pale-to-dark scale. Some brewers also estimate color by comparing to a standardized color chart (a color scale). The other measures aren’t about color: Plato relates to fermentable sugars (gravity of the wort), pH is acidity, and OG is original gravity. If you’re familiar with European systems, EBC color is roughly 1.97 times SRM, but SRM is the standard in many contexts.