How to make transparent ice

How to make transparent ice ? - I think many of you have already asked a similar question. After all, when you freeze the ice, for some reason it becomes cloudy. . .

How to achieve this? No secret, everything is extremely simple and does not require additional equipment.

First, we need filtered water. After all, one of the things that causes clouding of ice is dust and additional minerals contained in water.

Next - double boiling: boil water, let it cool to room temperature and boil again. That's all ! You did it.

Double boiling eliminates the dissolution of air and decomposes minerals!

And here is the result: