As public attention to food safety continues to grow, the materials of kitchenware that come into direct contact with food have become a major focus. With its core advantages of being safe, non-toxic, heat-resistant and easy to clean, liquid silicone rubber (LSR) has gradually replaced traditional plastics and ordinary rubbers. It is now widely used in various household food contact kitchenware, acting as an "invisible guard" for family table safety, making cooking and dining more reassuring and convenient.
Since household food contact kitchenware directly touches ingredients and food, safety is the top priority—and liquid silicone rubber perfectly meets this demand. Featuring a pure composition, non-toxicity and odorlessness, it contains no harmful substances such as plasticizers or heavy metals. It has passed food-grade safety certifications and complies with the latest national standard
Silicone Rubber Materials and Articles for Food Contact. Safe for direct food contact and oral use, it does not contaminate ingredients or food, thus protecting the dietary health of family members.
Heat resistance is one of the most prominent advantages of liquid silicone rubber and a key factor for its adaptability to household kitchenware. In daily cooking, ovens, steamers and boiling water often exceed 100°C. Traditional plastic kitchenware tends to deform and release harmful substances at high temperatures, while ordinary rubber products easily age and become sticky. In contrast, liquid silicone rubber withstands temperatures ranging from dozens of degrees below zero to over 300°C. It remains stable without deformation or harmful gas emission when heated in ovens or steamers, maintains consistent performance during boiling disinfection, and does not turn yellow or degrade after repeated use.
It boasts a soft texture and excellent elasticity, delivering comfortable handfeel and convenient use for kitchenware made from it. Common examples include silicone spatulas, brushes and heat-insulating gloves—soft yet tough, they will not scratch non-stick coatings, spread sauces and mix ingredients evenly, and provide outstanding heat insulation to effectively prevent scalding. Meanwhile, the smooth, non-stick surface of liquid silicone rubber allows easy cleaning with just a rinse of water. It resists dirt accumulation and bacterial growth, eliminating tedious cleaning steps and matching the efficient cooking needs of modern families.
From a production perspective, liquid silicone rubber is easy to process and highly adaptable. It flows freely before curing, enabling precise injection into kitchenware molds of various shapes for fast solidification. Whether for small items such as spatulas and sealing lids, or larger products like heat-insulating mats and fresh-keeping box gaskets, it achieves accurate dimensions, smooth surfaces and burr-free finishing. With high durability, it resists cracking, deformation and peeling during long-term use, offering a longer service life and higher cost performance than traditional materials, reducing replacement costs for households.
Today, liquid silicone rubber is widely applied across all categories of household food contact kitchenware, from cooking tools and heat-insulating accessories to fresh-keeping seals, fully integrating into family cooking scenarios. With multiple strengths including safety, non-toxicity, heat resistance, easy cleaning and durability, it solves many pain points of traditional kitchenware, safeguarding table safety while improving the cooking experience. Going forward, as food safety standards continue to rise, liquid silicone rubber will become the mainstream material for household food contact kitchenware, bringing a safer and more convenient cooking experience to more families.
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IOTA Liquid Silicone Rubber