Calcium hydroxide food grade powder is a purified form of calcium hydroxide (Ca(OH)₂) that meets food-grade purity standards, used in food processing for pH adjustment, peeling, and mineral fortification. It is a white, odorless powder with low heavy-metal limits, distinguishing it from industrial-grade lime.
What is calcium hydroxide food grade powder used for?
In food production, it adjusts acidity, aids in peeling fruits and vegetables, and processes corn for tortillas. It also serves as a calcium source in fortification and a firming agent in some canned goods. Because it is alkaline, only small amounts are needed.
How is food grade calcium hydroxide made?
It is produced by hydrating high-purity calcium oxide with water, then drying and milling to a fine powder. Manufacturers control particle size and purity to ensure consistent performance. As a calcium manufacturer, ensuring strict quality control is essential for food safety.
How do you choose a reliable calcium supplier?
Look for suppliers who provide a certificate of analysis (CoA), comply with food safety regulations like FCC or E number E526, and offer consistent particle size. A reputable calcium supplier will also provide documentation for traceability. Many buyers source from china calcium salts producers for cost-effective, high-volume supply.
What safety precautions should you take?
Calcium hydroxide is caustic and can irritate skin, eyes, and lungs. Use gloves, goggles, and a dust mask when handling the powder. Store it in a cool, dry place away from acids to prevent reactions.
Is calcium hydroxide food grade powder safe to consume?
Yes, when used according to food regulations and within approved limits. It is generally recognized as safe (GRAS) by the FDA for specific uses. However, direct consumption of the powder without dilution can cause burns, so it should only be used in controlled food processing.
常见问题
What is the difference between food grade and industrial grade calcium hydroxide?
Food grade calcium hydroxide has stricter limits on heavy metals and impurities, making it safe for food contact. Industrial grade may contain higher levels of contaminants and is not intended for consumption. Always check the certificate of analysis for food-grade compliance.
Can calcium hydroxide food grade powder be used in home cooking?
It is sometimes used in traditional recipes like nixtamalization for corn tortillas, but only food-grade powder should be used, and in precise amounts. Because it is caustic, it should be handled with care and kept away from children. For most home cooks, it is safer to buy pre-processed ingredients.
How should I store calcium hydroxide food grade powder?
Store it in a tightly sealed container in a cool, dry place, away from acids and moisture. Exposure to air can cause it to react with carbon dioxide, forming calcium carbonate and reducing potency. Proper storage maintains its quality for up to two years.
