Category: Caustic Soda
Food Grade Sodium Hydroxide
1. Purity requirements:
Food-grade sodium hydroxide must have high purity, usually requires a purity of more than 99%. This is to avoid the impact of impurities that may exist in food on food quality and safety.
2. Heavy metal and hazardous substance restrictions:
Food grade sodium hydroxide should comply with the heavy metals and hazardous substances limits specified in international and national food regulations. These substances include lead, mercury, arsenic, etc., and their presence in food should be below the safety limits.
3. Odorless and colorless:
Food grade sodium hydroxide should not have obvious odor or color to ensure that it does not affect the taste or appearance of food.
4. Microbiological limits:
The microbial contamination of sodium hydroxide must comply with food safety standards to prevent the presence of bacteria, mold or other microorganisms.
5. Packaging and labeling requirements:
Food grade sodium hydroxide should be stored in appropriate containers and labeled with information such as composition, purity, date of manufacture and manufacturer.
6. Production process requirements:
The process of producing food grade sodium hydroxide must comply with health standards and take appropriate control measures to prevent contamination or cross-contamination.
1. Acid-base regulator:
Sodium hydroxide is a strong base that can be used to adjust the pH of food and beverages. It is often used to neutralize acids in food to improve taste and texture.
2. Antioxidant:
Sodium hydroxide can be used as an antioxidant during certain food processing to help prevent food spoilage and oxidation.
3. Degreasing agent:
Sodium hydroxide can be used in the degreasing process in food processing, such as the preparation of chocolate and cocoa products.
4. Food processing:
It is an essential ingredient in some food processing processes for the preparation of bread, cookies, candies, wine and other food products.
5. Flavoring agent:
A small amount of sodium hydroxide can be used as a flavoring agent to improve the flavor of some foods.
1. Strong alkaline:
Food grade sodium hydroxide is a strong alkali, which can effectively adjust the pH of food and beverage. It can neutralize acidic components, thus improving the taste, texture and stability of food.
2. High solubility:
Sodium hydroxide is extremely soluble in water, generating hydroxide ions (OH-) and sodium ions (Na+). This high solubility makes it easy to be mixed and dispersed in food processing, ensuring uniform acid-base regulation.
3. Moisture absorption:
Sodium hydroxide is strongly hygroscopic, so it needs to be kept dry during storage and handling. This helps prevent it from absorbing too much moisture and forming clumps.
4. Wide range of uses:
Food grade sodium hydroxide has a variety of uses in the food industry, including acid-base regulation, antioxidant, degreasing, food processing and making food ingredients. It is often used in the preparation of bread, cookies, candies, chocolates, alcohol and other foods.
5. Food safety standards:
Food grade sodium hydroxide must meet strict food safety standards and regulations. It should be free of hazardous substances, such as heavy metals and impurities, and should be stored in appropriate containers to ensure its purity and safety.
6. Process Controls:
Food manufacturers must take appropriate safety measures and process controls when using sodium hydroxide to prevent misuse or accidental exposure and to ensure worker and food safety.
