Grain per gallon is a measurement used to describe the concentration of a substance, typically a solute, in a liquid solution. It is often used in contexts such as brewing, winemaking, and water treatment to quantify the amount of dissolved solids or other compounds in water. 1. **Brewing and Winemaking**: In brewing or winemaking, grain per gallon can refer to the amount of fermentable sugars or other solids extracted during the process.
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