Icesticks are long plastic sleeves, filled with delicious liquid flavours, which you freeze and enjoy as a frozen treat. Handy, because you can also store the icesticks outside of the freezer! Therefore, you’ll usually find icesticks near the fruit lemonade and soft drinks and sometimes with the ice cream in the frozen section of the supermarket.
When you want to enjoy the icesticks, just put them in the freezer. The time it takes to freeze icesticks is about 24 hours; the minimum time depends on the freezer and how many products you are going to freeze.
Please shake the icesticks before freezing
them. If you don't do this, one or more icesticks may not freeze, due to the metastable phase.
In the phenomenon of "supercooled melt",
a liquid has the required temperature to freeze, but it lacks"particles" in the water on which crystallisation can start.
This
happens when a liquid is either very
clean (e.g. distilled water) or when the "particles" have settled at
the bottom and are no longer floating freely in the liquid.
If you move such a liquid quickly (for
example by shaking it), you can see how the water freezes.
You can also take icesticks with you en route, on a day out, to the beach or a campsite: