Peracetic Acid
Peracetic Acid (PAA) is a disinfectant chemical used by hospitals and the food processing industry. It is very effective for killing microscopic organisms hiding in and on surfaces, but it decomposes to acetic acid, the acid in vinegar, and thus leaves no harmful residues on the food. PAA is a colorless liquid, highly reactive and has a strong vinegar like odor that you can smell at very low levels.