What is the role of potassium carbonate in food?

Potassium carbonate added to food is mainly used to improve color and flavor, and does not have the function of a leavening agent.
Potassium carbonate is usually added in appropriate amounts when making noodles and wontons, which can give the products unique flavor, color and toughness (often used in combination with sodium carbonate, etc.). But it does not act as a leavening agent. Sodium carbonate is used as a neutralizing agent and leavening agent, such as in the production of amino acids, soy sauce and pasta products such as steamed buns, bread, etc. It can also be mixed into alkaline water and added to pasta to increase elasticity and ductility.
Potassium carbonate is an inorganic substance with a chemical formula of K2CO3 and a molecular weight of 138.206. It is a white crystalline powder with a density of 2.428g/cm3 and a melting point of 891°C. Easily soluble in water, the aqueous solution is alkaline, insoluble in ethanol, acetone and ether. It is highly hygroscopic and can absorb carbon dioxide and moisture when exposed to the air and turn into potassium bicarbonate. It should be sealed and packaged.
How to get potassium carbonate? The plant ash method is the oldest method, which is extracted from plant ash burned from various plant shells (such as cottonseed shells, tea seed shells, tung seed shells, and sunflower seed shells). Plant ash contains soluble salts such as potassium carbonate, potassium sulfate, and potassium chloride, which can be separated by precipitation and filtration. This method is rarely used due to low product quality, uneconomical, and limited raw material sources.