Hacker News new | ask | show | jobs
by chongli 2667 days ago
Another trick is to drill holes in the bottom of the wells of an ice cube tray and rest the tray on a frame above the bottom of a basin. You fill the water up so that it's level with the top of the tray. When the water freezes, the air gets forced down through the holes in the bottom of the tray. Then you can chip the tray out and remove your clear ice cubes.