Food-grade chemicals are substances that meet strict purity and safety standards set by regulatory bodies such as India's FSSAI (Food Safety and Standards Authority of India), the US FDA, and international bodies like JECFA. These chemicals are used in food processing, preservation, flavouring, and quality control — and their quality directly impacts the safety of the final food product.
What Makes a Chemical "Food Grade"?
The term "food grade" indicates that a chemical meets the purity specifications required for use in food applications. This typically means the substance has been tested and certified to contain no harmful impurities, heavy metals, or contaminants above permissible limits.
Key differences between food-grade and industrial-grade chemicals include purity level, absence of toxic by-products, traceability, and documentation such as Certificate of Analysis (COA) and MSDS.
Most Commonly Used Food-Grade Chemicals in India
1. Citric Acid (Food Grade)
One of the most widely used food additives globally, citric acid serves as a natural preservative, flavour enhancer, and pH regulator. It is used in beverages, candies, jams, and processed foods. Available in anhydrous and monohydrate forms.
2. Sodium Bicarbonate (Food Grade)
Also known as baking soda, food-grade sodium bicarbonate is used as a leavening agent in baked goods, an antacid in beverages, and a pH buffer in various food applications. Polychem supplies BP-grade sodium bicarbonate suitable for both food and pharmaceutical applications.
3. Glycerine USP / Food Grade
A colourless, odourless liquid used as a humectant, solvent, and sweetener in food products. Food-grade glycerine must conform to USP or BP specifications to ensure suitability for human consumption.
4. Propylene Glycol (Food Grade)
Approved as GRAS (Generally Recognised as Safe) by the FDA, propylene glycol is used as a food additive, solvent for flavours, and moisture-retention agent in a wide range of processed foods.
5. Phosphoric Acid 85% (Food Grade)
Used primarily in cola drinks as an acidulant, and in processed cheese and jams. Must meet strict heavy metal specifications for food use.
Sourcing Food-Grade Chemicals Responsibly
When sourcing food-grade chemicals, manufacturers should look for:
- Valid Certificate of Analysis (COA) from the supplier
- FSSAI-compliant documentation for Indian market use
- Clear grade specification (Food Grade, USP, BP, IP)
- Proper packaging and labelling
- Reliable supply chain with consistent quality
At Polychem Industries, we supply a comprehensive range of food-grade chemicals with full documentation including COA, MSDS, and grade certification. Our products are used by food manufacturers, beverage companies, and processing units across India and internationally.
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