Sorbet is a must have in summer, but why doesn t it melt when it s wrapped in a quilt?

A must-have for summer is sorbet.

However, wrapping it in a quilt will not melt, in fact, it is using the principle of cold insulation. Although people will feel very hot when using the quilt, in fact, the quilt itself will not heat up.

Yes, it is the human body that heats up. The quilt only plays a role in heat insulation, the outside temperature will not enter the quilt, and the heat of the person will not be lost, so people can play a role in keeping warm when using the quilt.

When the sorbet is placed in the quilt, the quilt will also isolate the heat from the outside, and the quilt will form a barrier between the sorbet and the hot environment outside, which can prevent the heat from spreading to the inside of the quilt. And the cold air generated by the sorbet does not spread to the outside world, because the cold environment is closed in the quilt. Therefore, sorbet will not melt even if it is placed in a quilt in the summer.

The principle of quilt insulation is actually the same as the insulation of the thermos cup, although the thermos cup that is generally understood can keep the hot water at a high temperature, but in fact, the thermos cup can also be used to hold ice water, and the temperature of the ice water can also be maintained, and it will not become room temperature water because it is very hot outside. Because the thermos cup also forms a barrier with the outside air.

The quilt is used to preserve the ice cream or the human choice of the quilt to keep warm is the same reason, not the thermos cup itself heats, nor the quilt itself heats, but depends on the temperature of the object in the quilt or the thermos cup, if its temperature is hot, then the quilt can keep its heat. But if the temperature is cold, then the quilt can also keep it cold, so the sorbet will not melt when placed in the quilt.

However, under normal circumstances, quilts are not used to preserve sorbets, and insulated bags are generally used, and insulated bags are also used with a layer of heat insulation film.

If the heat of the outside world is isolated from the ice cream, then the heat will not come in, so cold drinks can still be stored at a good low temperature, and the principle is the same.

The sorbet is wrapped in a quilt, he wants to melt, there is no way to release the heat, the environment around it is cold, and the quilt will also have a thermal insulation effect, so it will not melt so easily.

As we all know, the function of the quilt is to keep warm Well, under normal circumstances, people use quilts to keep their bodies hot, so the quilt for sorbet is to keep the ice cream itself cold, and the sorbet is not easy to melt.

The quilt does not generate heat, but it is very insulated and can block the heat dissipation, so that the cold air emitted by the sorbet is not easy to dissipate, so it is not easy to melt away.

I also have your confusion, but I understand it like this: they are all placed in the refrigerator, and then the outside is covered with a quilt, because the lid of the refrigerator is transparent, and the quilt is covered to prevent the sun.

Wrapping the ice cream in a quilt prevents it from melting in the summer, because it blocks the exchange of hot substances with the outside world. Without this exchange of hot and cold, the ice cream would not melt. When we were young, we often saw people selling sorbet in this way of wrapping sorbet in a quilt, because there was really no refrigerator to store sorbet at that time, and the fridge may only be used to make sorbet.

The second is because using a quilt to wrap sorbet to sell sorbet can reduce people's burden, because at that time, people rarely had their own fixed stalls, but only owned running water stalls, so it was not easy to move refrigerators.

1. The miraculous effect of the quilt When we cover the quilt, we may feel very hot, but the ice cream does not feel very hot when the quilt is covered. This is because we are in a state of temperature, and the use of quilt barrier can keep our own temperature at about 36 degrees, or even higher. The temperature of the sorbet is relatively low, at zero degrees or even below zero, and its temperature can be maintained for a long time by wrapping it in a quilt.

Second, the law of temperature conduction, when the temperature is conducted, it is transmitted from a high-temperature object to a low-temperature object, and for conduction, it must have a certain medium. The presence of a quilt can prevent the heat from being transmitted to the sorbet, which can then be kept in a state that does not melt. To this day, we can even see such a quilt in front of some supermarkets and fixed stalls.

Because this can adjust the temperature of the refrigerator to a suitable temperature, there is no need to adjust it to a higher setting, and then waste a lot of electricity, and the quilt will not let the ice cream be exposed to the sun and melt.

The quilt is a bad conductor, so it can be used for our insulation, and it can also be used for cold insulation. In the era of material scarcity, he is still a resource that everyone has, so it is normal to use it to wrap sorbet.

The reason why the quilt can be used to isolate the heat is used on the popsicle, so that the cold air of the popsicle inside can stay in it all the time, and the cold air cannot come out, so as to achieve the purpose of maintaining a relatively low temperature.

It prevents the conduction of heat from the outside world, and can also prevent the cold air inside from flowing, so that the temperature inside can also be kept at a relatively low level. In this way, all the ways in which the heat is transferred can be easily isolated with a quilt. In winter, the quilt is used to insulate the loss of heat, and in the summer, the popsicle is covered with a quilt to insulate the loss of cold air.

Warm products such as quilts, down jackets and kettles are not heated, and they can be kept warm because the quilt can reduce the heat transmission between the collapsed spring object and the outside world, so that the temperature of the internal object itself will not change quickly.

If it is a hot water or other hot product, it will maintain a high temperature for a long time if you put it in these warm products, and if it is a low-temperature product such as ice cubes and ice cream, it will melt more slowly than if you put it in these warm products than if you put it at room temperature. Therefore, the quilt can be both warm and cold.

In summer, the refrigerator where ice cream is placed outdoors is generally covered with a quilt, which is to prevent the balance of cold and heat exchange, and prevent the external heat from spreading inward, that is, it plays the role of a thermal insulation layer.

How to store ice cream delivery?

Ice cream is generally stored in cold storage between minus 18 and 22 to ensure that the ice cream is intact.

Each ice cream is frozen for at least 12 hours before shipment to ensure that the ice cream is in perfect condition on the road.

During the loading of ice cream, the cold storage should be opened and double-clicked to freeze, and the ice cream should be pre-cooled 2 hours in advance when it is transported to the cold chain truck, and it must be moved out of the cold storage very quickly, so that the ice cream will not be deformed.

During the whole transportation process, the door of the transport truck loaded with ice cream must not be opened, and the ice cream cannot be carpooled with other refrigerated products in front of the car, so as to maintain the freshness of the ice cream to the greatest extent and at the same time maintain the original shape of the ice cream.

In addition, ice cream should be insulated in dry ice foam boxes when it is delivered separately so that it can be safely delivered to consumers.

Summer is a good season to eat ice cream, but eating too much ice cream is also harmful to the human body. Ice cream is a cold food, and it is not very good for the uterus for women to eat too much, and it is easy to cause diarrhea, spleen and stomach deficiency and other symptoms.

Analysis] In summer, cover the ice with a quilt, the ice cube is not easy to melt, this is because the quilt is a bad conductor of heat, so the speed of heat transfer is relatively slow, and the heat outside the quilt is not easy to transfer to the ice cube, so the ice cube is not easy to melt. Therefore, the correct answer is c. 【Reviews】 Note:

It can't be said that the "temperature" is transmitted, but it can only be said that the "heat" is transmitted!

It's a matter of heat delivery.

Wearing cotton clothes to warm up is because cotton clothes prevent part of the heat transfer (loss), and cotton clothes wrap popsicles do not melt because cotton clothes prevent popsicles from getting the heat needed to melt.

Junior High School Physics: The three elements of heat transfer, heat conduction, convection, and radiation.

Cotton clothing can prevent the transfer of heat in two aspects: heat conduction and convection, while the thermos tank is improved in three aspects: heat conduction, convection, and radiation.

That's right, stupid, because the outside temperature is low in winter, wearing cotton clothes is to ensure that the heat emitted by the body is not lost, and in summer, the outside temperature is high, and wrapping ice cubes in quilts is to ensure that the ice cubes are not melted by the high temperature outside.

The main function of cotton clothing is to isolate the temperature, that is, to ensure that the temperature is not lost.

Wearing cotton clothes in winter is to ensure that the heat emitted by the body does not lose to the outside world.

In summer, wrapping ice cubes in a quilt is to ensure that the ice cubes are not melted by the high temperature outside.