yes
There are ice cube trays that you can buy which will freeze water in the shape of a shot glass, which will keep your drink cold and melt when any drink is in it.
yes. it is safe to make ice in plastic trays.
cheese
Yes, they can, without changing them. Some people freeze them individually in ice cube trays, then store the cubes in baggies; then they always know how many they're defrosting.
No, they work just fine.
Yes, you can freeze eggs. One easy and convenient way to freeze eggs is to open them and pour them individually into ice cube trays. When you're ready to use an egg, simply pop one out, thaw it and use it. This is a great way to stop your eggs from ruining when you have an abundance of them.
Ice cube trays are traditionally used to hold water within a freezer for the purposes of making ice cubes. Other uses for ice cube trays are to make homemade popsicles; putting a fruit juice instead of water results in popsicles made from fruit juice. Grape juice and orange juice work particularly well.
Place in a freezer before filling
There is some argument as to when ice cube trays were first invented. In one instance, American physician John Gorrie built a refrigerator in 1844 that had rudimentary plans for an ice cube tray though it was never created. The other was from inventor Fred Wolf, who invented an electric refrigerator in 1914 that, while not a retail success, came with an ice cube tray.
most commonly plastic or flexible silicone
liquid to solid
0 degrees celcius