No

The lunch box is a box specially designed to contain meals, also known as bento box, mostly made of aluminum, stainless steel, plastic. Lunchboxes include plastic lunchboxes, insulated lunchboxes, and ordinary lunchboxes. Lunch box from: Yang Shuo "Three Thousand Miles of Rivers and Mountains", paragraph 5: "The rice in the lunch box gurgled."

The paper lunch box can not be put in the microwave. Microwave heating is extremely fast, and poor control will make the temperature too high, the paper bowl becomes soft, easy to burn, and there is a risk of burning. Paper bowls at high temperatures, but also and food interpenetration, inevitably, there are substances detrimental to health infiltrated into the food. Therefore, the microwave oven do not try to use paper bowls to heat things, it is recommended that ceramic bowls, microwave containers or some heat-resistant glass containers to heat the food.

Types of lunch boxes

1, microwave oven lunch box

The texture is thick and sturdy, the use of the temperature of 140 ℃ - -30 ℃, can be placed in the microwave oven high-fire cooking, but also can be placed in the freezer low-temperature refrigeration. The box body is generally glass-colored, clear and transparent. Lunch box built-in small steaming rack for steaming noodle products to provide convenience, but also with the role of drip, for the heating of grease food is not water vapor moist food, while maintaining the original flavor of food.

2, thermal insulation lunch box

Can maintain the temperature of the meal lunch box, the liner can be divided into several, such as stainless steel liner, tempered glass liner, etc., the material is different thermal insulation performance is different. Vacuum insulation, can be 10 hours, wrote the insulation to keep cold, can be 24 hours. Military lunch box troops marching and fighting with a professional lunch box. Generally lightweight and compact, carrying aspect, not easy to rust, in addition to plasticity, can avoid bumping on the body; aluminum products in the very period can be used as a pot, in addition to lightweight, carrying aspect and other functions, aluminum lightweight, reduce the weight, the texture is generally thinner, fast thermal conductivity, saving fuel, compared to the military metal and iron and steel products, the cost of low suitable for large-scale equipment.

3, plastic lunch box

Material for the plastic lunch box. Plastic lunch box raw materials lead to the lunch box filled with minerals and additives and food contained in the water, vinegar, oil and other mutual dissolution, so it is easy to produce odor.

4, disposable lunch box

Made of Styrofoam, can only be used once the lunch box. It is also called white lunch box. It is to Freon as a blowing agent, the production of raw materials is polystyrene, Freon is an ozone-depleting substance, so that the atmosphere produces ozone holes. Polystyrene is a carcinogen and can cause reproductive disorders. During use, when the temperature exceeds 65 degrees Celsius, it produces a number of toxins and dioxins, which are toxic chlorine-containing compounds. Dioxin is the most toxic of the world's known toxic compounds, extremely carcinogenic, capable of causing serious skin diseases and injury to the fetus, as well as the potential to cause male estrogenization. It is more harmful and is not recommended.