Do you sell marshmallows in different seasons? Can you sell marshmallows in summer?

Cotton candy can be sold in summer regardless of season, but it melts faster when the temperature is high in summer, so you need to pay attention.

The rapid cooling makes the sucrose molecules can't be arranged neatly, so the huge fluffy marshmallows in children's hands are no longer crystals, but are composed of countless linear and glassy sugars. The crystal structure of sucrose has been destroyed by cotton candy makers, and the arrangement of sucrose molecules is no longer irregular, but chaotic.

This structural change can be measured by melting point. Sucrose molecules have a specific melting point, and the temperature will not change when they are melted by heat. However, the cotton candy silk has no specific melting point, and the temperature will rise when it melts.

Extended data

The molecules in sucrose crystals are arranged very neatly, and each molecule has a fixed position, just like a neatly parked car in a parking lot. However, once sucrose enters the cotton candy making machine, its molecular structure will change, and sucrose will become a very long filamentous substance, which will be intertwined like cotton.

At the center of the cotton candy machine is a fast rotating thing. Under the action of rotating centrifugal force, cotton candy pulp keeps flying out of the small holes of the machine. If we only think about this phenomenon from the knowledge points of junior high school, it is inertia.

The syrup was originally attached to the machine and rotated with the machine. When the speed suddenly increases, the centrifugal force is greater than the adhesion friction, and the syrup will fly out under the action of inertia. The same phenomenon can be found in athletes' hammer throwing, spinning and opening umbrellas to throw water drops and so on.