As a material that comes into direct contact with food, the safety of food-grade silicone has attracted much attention. Modern technology has established a comprehensive safety guarantee system for it, making it one of the safest food contact materials.
From raw materials to finished products, food-grade silicone must pass strict quality control. The purity of medical-grade silicone raw materials reaches 99.99%, and the heavy metal content is less than 0.001%. GMP standards are adopted in the production process to ensure no pollution. The finished product must pass international certifications such as FDA and LFGB. The migration test shows that the amount of harmful substances precipitated is only 1/100 of the standard limit.
The chemical stability of food-grade silicone is the basis of its safety. Experiments show that within the temperature range of -60℃ to 250℃, the material structure remains stable and will not decompose to produce harmful substances. In the acid and alkali resistance test, after immersion in 10% acid and alkali solution for 30 days, the performance retention rate exceeded 99%. Long-term use experiments have confirmed that after 3 years of use, the material performance decay rate is less than 5%.
Biosafety is another important indicator. Cytotoxicity tests show that the cell survival rate of food-grade silicone exceeds 95%. Skin irritation experiments show that its sensitization rate is 0.01%, which is far below the international standard. Acute oral toxicity tests confirm that its LD50 is greater than 5000mg/kg, which is actually non-toxic.
The safety of food-grade silicone has been fully verified. Through strict raw material control, advanced production technology and comprehensive performance testing, its reliable application in the field of food contact is ensured. With the advancement of detection technology, its safety standards will continue to improve, providing consumers with more assured use guarantees.