Citric acid

Lemon acid (2-hydroxypropane-1,2,3-tricarboxylic acid, 3-hydroxy-3-carboxypentanedioic) C (OH) COOH-CH2-COOH or (HOOCCH2) 2C (OH) COOH is a tribasic carboxylic acid. White crystalline substance.

Applies as a flavoring agent, acidity regulator and as a preservative in the food industry.

In household chemicals, it is widely used as a cleaning agent.

For cleaning brewing equipment, the recommended proportion, when preparing a slightly acidic solution, is 30 g per 1 liter.