Thank you for posting this. This is the most useful advice I have ever had.

Previously I made the mistake of filling the ice tray then placing it on the stove.

Another time I did place it in the freezer but I used soy sauce instead of water and the ice cubes it made did not really function correctly when I put them in my drink!

Edit: I forgot to add the tweet link originally - please retweet if you can:

https://twitter.com/Soul_Eater_43/status/855130333917970432