How to Make Prettier, Clearer Ice Cubes

Instructions

Upgrade your water. More specifically--get a filter or use bottled water for your cubes. This way you start off with less air and minerals.
Boil it twice. Bringing your water to a boil removes air bubbles and allows the molecules to bind tightly when frozen. (Fact: The harder the ice, the longer it takes to melt.) Just make sure to let the water cool before boiling it a second time.
Pour and cover. Let the freshly boiled water cool down before pouring it into your ice tray. Once you've poured (evenly, of course, so they're uniform in size), cover the tray with plastic wrap to keep out any particles.

Ingredients