Limewater

Limewater is a clear, colorless liquid made by dissolving calcium hydroxide in water. Calcium hydroxide is a chemical compound produced by heating calcium carbonate (like limestone) and then reacting the resulting calcium oxide with water. It's often used as a food additive.

Manufacturers use limewater primarily as an acidity regulator and firming agent in food processing. It helps to maintain a stable pH and can improve the texture of certain foods, making them firmer and less likely to break down. It is often found in canned vegetables, pickles, and some processed snacks.

In the U.S., limewater (calcium hydroxide) is generally recognized as safe (GRAS) by the FDA for use as a food additive. It is a source of calcium, which is an essential nutrient. International bodies like JECFA have evaluated calcium hydroxide and established acceptable daily intake levels. At typical consumption levels, it is not associated with adverse health effects.