Enamel on stainless steel microwave safe bento box home cooked meals are healthy and delicious. The enamel on stainless steel series, not only features beautifully detailed rim but also rust resistance. While cooking, far infrared will be emitted, reducing the molecule of the content which allows nutrients to be easily absorbed. Far infrared heats the food evenly, making the food delicious and nutritious. The enamel coating is easy to clean and non-reactive. It is safe for cooking and storing with all types of ingredients. materials：enamel, stainless steel, silicone usage •suitable for microwaves(must with lid on), gas stoves, induction cookers, ovens, and the fridge. •in addition to preserving food, you can also use a small fire to heat the bento box(without lid). •it is recommended to use silicone or wooden utensils to avoid damaging the surface. •it is recommended to cook with a medium-low fire to heat evenly and not easy to stick. •please place the bento box in the center of the stove to avoid uneven heating. •use mitts when moving the bento box while/after heating. •clean with dish washing detergent and a sponge. care •microwave safe by using household microwave ovens. Do not microwave for more than 10 min(must with lid on). • please open the air hole cover during microwaving. • it is normal if the enamel coating is slightly uneven. •do not use metal brushes or cooking utensils to avoid surface damage. •do not drag the enamel bento box on the gas stove to avoid the stove's scratching the bottom. •it is recommended to use a medium to low fire for cooking. And the fire should not exceed the bottom of the bento box. •do not use the silicone lid for ovens and gas stoves. •if the product is bumped and damaged, please stop using it in microwave ovens immediately.