Why does the tongue stick to iron easily in winter?

In winter, the tongue tends to stick to iron because the moisture on the tongue freezes. The lower the metal temperature, the faster the tongue freezes. Not only the tongue, but also the sweaty hands may be frozen by the iron railing if they touch it. In addition, the thermal conductivity of metal is faster than other objects, so it will happen that the tongue licks the metal and it is frozen.

Therefore, when licking things in winter, such as sugar-coated haws and ice cream, we must first determine whether their thermal conductivity is very high, so as not to freeze our tongue.

Extended data:

If your tongue sticks to iron in winter, don't pull it down hard. If it really gets stuck, it may tear your tongue. There is a simple solution for friends around, that is, pour warm water where the tongue touches the iron to warm the tongue and iron, and the ice will melt.

If a person is trapped, it is impossible to find warm water without the help of others. You can try to exhale from this area. Hot and humid air will melt the ice on your tongue. You can also try to melt the ice with warm hands and fingers and call for help in time.

China Digital Science and Technology Museum —— Why do tongues stick to iron railings in winter?