Potassium acetate has excellent antibacterial properties and can effectively inhibit the growth of microorganisms in food, thereby extending the shelf life of food. It can be used as a preservative and antibacterial agent in food, ensuring the safety of food during storage and transportation. Potassium acetate has a sour taste and acidic reaction, and can be used as a seasoning to improve the taste of food. It can help regulate the acidity and alkalinity of food, making it taste better and meeting the taste needs of consumers.

The preparation method of potassium acetate usually involves the reaction between glacial acetic acid and potassium hydroxide. The specific preparation process includes mixing potassium bicarbonate with water, and then slowly adding glacial acetic acid under heating and stirring conditions. During the reaction process, a large amount of carbon dioxide gas will be produced. After the reaction is completed, potassium acetate crystals are finally obtained through steps such as boiling, filtration, evaporation, cooling, and drying.