Silicone kitchenware is widely used in cooking due to its high-temperature resistance, flexibility, and durability. However, its safety and quality directly impact consumer health. To ensure product compliance with industry standards, a rigorous testing process is essential.
First, raw materials undergo preliminary screening. High-quality food-grade silicone should be analyzed through infrared spectroscopy to confirm its composition and eliminate the possibility of plasticizers or other harmful additives. Subsequently, semi-finished products undergo hardness and tensile strength testing to ensure their physical properties meet design requirements.
Finished product testing is a key step. Appearance inspection eliminates surface defects such as bubbles, impurities, and burrs. Dimensional accuracy is measured with a vernier caliper to ensure that deviations from nominal values are within acceptable limits. Chemical safety testing is particularly critical. Samples are immersed in a simulated food medium (such as oil or acidic solution) and treated at high temperatures. Gas chromatography is then used to analyze the released chemical substances to ensure that heavy metal and toxic residues remain below national standards.
Physical performance testing includes temperature resistance experiments, where samples are repeatedly subjected to temperatures ranging from -40°C to 230°C to observe for signs of hardening, deformation, or cracking. Furthermore, tear strength and service life assessments simulate long-term wear and tear to verify product reliability.
Finally, all test data is compiled and a report is generated. Only products that pass all criteria are allowed to enter the market. With increasing consumer awareness of health and safety, standardized and rigorous testing processes will become an inevitable trend in the industry, providing a solid guarantee for the quality of silicone kitchen products.
