Calcium oxide quicklime food processing grade is a high-purity form of calcium oxide (CaO) that meets food safety standards for use as a processing aid, pH adjuster, and firming agent in foods and beverages. It is produced by calcining limestone under controlled conditions to minimize heavy metals and other contaminants.
What is calcium oxide quicklime food processing grade used for?
In food processing, it adjusts pH, firms fruits and vegetables, and supports nixtamalization of corn. It also helps refine sugar and process drinking water. Because it reacts exothermically with water, it must be handled with proper safety controls.
How is food grade quicklime different from industrial grade?
Food grade quicklime is manufactured to stricter purity limits, with lower heavy metals and tighter quality control. Industrial grades may contain higher impurity levels and are not intended for food contact. Buyers should request a certificate of analysis and confirm compliance with relevant food chemical regulations.
How do you choose a reliable calcium supplier?
Selecting a calcium supplier involves verifying purity, documentation, and traceability. Working with an experienced calcium manufacturer ensures consistent quality, while sourcing through a network that includes china calcium salts can offer cost-effective options. Always audit suppliers and test incoming lots before production use.
What safety precautions apply?
Quicklime is alkaline and can cause skin and eye irritation. Use appropriate personal protective equipment, control dust, and store in dry conditions away from moisture. In food applications, follow approved usage limits and good manufacturing practices.
常见问题
Is calcium oxide quicklime safe to use in food?
Yes, when it is food processing grade and used within approved limits. It functions as a processing aid and pH adjuster, and manufacturers must meet purity standards that limit heavy metals and other contaminants. Always follow local food regulations and good manufacturing practices.
How should food grade quicklime be stored?
Store it in a dry, sealed container away from moisture, acids, and incompatible materials. Quicklime reacts with water and can generate heat, so keep it in a cool, well-ventilated area. Proper storage preserves purity and prevents safety hazards.
What documents should I request from a calcium manufacturer?
Ask for a certificate of analysis, safety data sheet, and evidence of food grade compliance. These documents confirm purity, contaminant limits, and traceability. Reliable suppliers provide batch-specific testing and clear labeling.
