What happens to ice cream when it is in the freezer?

Answer 1

Water particles in the ice cream in the inner bowl:

The water particles freeze and along with the other ingredients, release heat energy to the outer bowl. The constant agitation by the paddles in the machine keep the ice particles from aggregating, helping to give the ice cream its smooth texture.

Water particles in the ice outside the inner bowl:

Hand-cranked ice cream makers typically use chunks of ice and salt outside the inner bowl. The water particles in that ice melt, absorbing heat energy from the inner bowl.

Answer 2

If you put ice-cream in the freezer, it will harden, but if you leave it in there, small ice crystals will start to form on the top, so it is suggested to scrape off the top before eating again. However, it is a better choice to put it in the freezer than in the fridge, because the fridge might not keep it cold enough; as a result, it may melt.