Method number 1: Freeze boiled water
For this method, water must be passed through a filter, then boiled for several minutes. During drilling, excess air will be released from the water. After that, you need to wait for the water to cool naturally. If you boil water in a pan, then for the cooling period, the pan must be covered with a lid or takany so as to prevent dust from settling into the water.
Next, you should repeat the procedure, starting with filtration and ending with cooling, again.
Now the water can be poured into molds for freezing and sent to the freezer. After 24 hours, you can extract completely transparent ice from the molds.
Method number 2: How to freeze ice in a plastic container
Here we need a plastic refrigerator container that can hold the temperature. It will help the ice freeze slowly. The main thing is that the box fit into the compartment of the freezer in size.
We put ice molds in the container and fill them with clean water. Normal tap water is also suitable, but it must first be filtered.
Pour the bottom of the container with water so that the water is poured according to the water level in the molds. This water will allow ice to freeze in molds from top to bottom.
We put the box in the freezer, not covering the lid tightly. The temperature in the freezer should not be very low, approximately -8 ยบ?.
After 24 hours, we take out the frozen bottom of the box along with the forms. We beat off the excess ice around the form, and from the forms we get transparent cubes.
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