Capitol Food Company 200 Grain Vinegar

Capitol Food Company 200 Grain Vinegar is an aqueous solution of acetic acid and trace chemicals that may include flavorings. In much of the vinegar industry, the term "grain" is used to measure the strength of vinegar. In this terminology, 200 grain refers to 20% acidity. The term "grain" comes from an alternate measure of weight, the grain. By dissolving a base like sodium bicarbonate or sodium hydroxide in water, you could measure how many grains it took to neutralize vinegar of a specific strength and volume. In the most common formulation, it took 10 grains (presumably of sodium hydroxide) to neutralize 1% acetic acid, so the usage of grains for vinegar strength became interchangeable.