Food Grade Ethanol Knowledge Base
Answers to ethanol related questions, including detailed Permits and Regulations Database organized by US State.
Scroll the categories list below, or quickly search for your State's Food Grade Ethanol Permits and Regulations.
Answer: A "wine gallon" is a measurement of any liquid's total volume. 1 "wine gallon" is equal to 128 fl oz or 3.78 liters.
A "proof gallon" is a measurement of only the ethyl alcohol contained in a given volume of liquid. 1 proof gallon is equal to 1 wine gallon of liquid containing 50% ethanol.
See below for examples to demonstrate the point.
Mr tincture says:
Because a proof gallon is dependent on the amount of ethyl alcohol present, 1 proof gallon can be represented by many different final volumes of liquid. For example:
Some more proof gallon examples: