What are the functions of a lunch box

What are the functions of a lunch box? Lunch box so that you are busy working and studying, life, play an important role, has slowly become an indispensable piece of our daily life, a very useful item. Here I come to give you a detailed description of what are the functions of the lunch box?

What are the functions of the lunch box1

First, what is the lunch box

The definition of the lunch box refers to a special box used to load rice and vegetables, alias "lunch box", is to the majority of busy staff and students tailored to load the meals of daily necessities, most of the lunch box is made of aluminum, aluminum, aluminum, aluminum and aluminum. Most of the lunch box is made of aluminum, stainless steel, plastic, foam, and some are made of glass, aluminum and stainless steel made of lunch box quality is better, and lightweight and rust resistant, for students to speak not easy to break, more durable, and the price is cheaper, it is really a good choice of a good choice of the price sickle, plastic and foam made of fast food, because the general store with the packing boxes is Plastic and foam do, in the past when the fast food generally use foam to do lunch boxes packaged meals, because the original price is cheap and lightweight, but this has a problem is the foam packaged meals a little bit unhygienic, the foam can not withstand high temperatures, meal temperature is too high foam will have a foam melting plastic flavor, into the meal, harmful to the human body.

Now the takeaway disposable lunch box is made of plastic, because plastic disposable lunch boxes made of plastic is lighter and more sturdy than the packing box made of foam, is not easy to rot, but plastic lunch boxes also have the disadvantage of plastic lunch boxes, plastic lunch boxes are more wasteful of resources and pollute the environment, there is a lunch box is made of glass, more beautiful and good-looking, but also more hygienic and environmentally friendly, suitable for people to use the life of exquisite, not for students and busy people running around, not for the students and busy people. Suitable for students and busy people, each lunch box has its own characteristics, suitable for different environments and people, we can buy according to their own needs.

Second, what are the functions of the lunch box

A talk about the function of the lunch box will certainly be said to load the rice, but I want to tell you today is that the lunch box has a lot of functions, not only to load the rice. But I want to tell you today that the lunch box has many functions, not only for holding the meal, he also has many additional functions.

1, bento, for busy people to load meals with work.

2, packing box, in today's developing society, everyone can't live without takeaway, and the packing box is one of the very important items for businessmen, without the packing box, your takeaway can't be delivered to you perfectly.

3, lunch bowl, for students lunch box is the bowl they eat, to eat well in school can not do without it.

4, fruit plate, no fruit plate at home can be replaced with a glass lunch box, when you want to go out you can also take a transparent lunch box as a snack.

5, fresh box, when you want to do milk tea or other things can be packed in a lunch box and put in the refrigerator to keep fresh, clean and hygienic.

The above is my introduction to the lunch box, the lunch box is no longer the previous kind of a single iron lunch box, with the society's 'development, the progress of the times, now the lunch box type of a variety of functions are also distinctive, can solve a lot of your trouble, and different types of lunch box to adapt to the crowd is not the same, look at the introduction of my today, you should have some idea of what type of lunch box for yourself! The lunch box is a good choice for you to have a lunch box! Finally, thank you for watching.

What are the functions of the lunch box 2

Insulated lunch box can keep warm for how long

In general, the better quality of the insulated lunch box can be insulated for 4-5 hours, different brands of insulated lunch box insulation time varies. Thermal insulation lunch box is in the ordinary lunch box plus a thermal insulation shell, there are inside and outside the two layers filled with foam, and then in the inner layer plated with a metal film composition. From conduction, radiation, convection three aspects of reducing heat loss. And in the lunch box and shell between the addition of an electric heating device to supplement the loss of heat, so that the meals remain at a certain higher temperature.

How to choose the insulation lunch box

The insulation performance of the simple identification method

Pouring boiling water into the insulation cup clockwise tightly screw the stopper or the lid 2-3 minutes after the hand touch the outer surface of the cup, if the cup (pot) body has a clear phenomenon of warmth, especially in the lower part of the cup, the product has lost the vacuum. Heat, indicating that the product has lost the vacuum, can not achieve a good insulation effect, and insulation of the lower part of the cup is always cool. Misunderstanding: Some people use their ears to listen to whether there is a nuisance sound to determine its insulation performance, the ear is not to hear whether the vacuum.

Plastic parts identification method

Food-grade new plastic features: small odor, bright surface, no burrs, long service life is not easy to aging. Ordinary plastic or recycled plastic features: odor, gray color, burrs, plastic easy to aging easy to break. This will not only affect the service life, but also affect the drinking water hygiene.

Sealing performance identification method

In the cup (jug) after adding water, according to the clockwise direction of the cork or cup cover tightly screwed, the cup (jug) flat on the desktop, there should be no water seepage; the cup (jug) cover and the mouth of the cup should be flexible to rotate into and out of the nozzle, no gap. Fill a cup of water inverted four or five minutes, or force to shake a few can verify whether the leakage.