Clear Ice Cubes

I’ve been thinking about buying a vacuum pump for experiments on this and other foodie items, but haven’t done so yet. Still, the insulation approach is cheaper.

Yeah, sorry about that. I’ll add an annotation.

I discovered a new thing about the technique today: food coloring does not get frozen in! I wanted to make some bi-color ice balls for Christmas by merging together a red and green slug. I added some food coloring, but it turns out that the crystallization process somehow displaces the color, and I still get clear ice (with a slightly more colored liquid layer below)! Pretty strange, though not entirely unexpected. Maybe I can make use of the property somehow…

We’ve replaced John’s perfectly clear ice cubes with lucite. Let’s see if he notices …

I was defrosting my kegerator this weekend - there was a bunch of ice building up in the back near the cooling mechanisms. As the ice melted, I found a chunk about 2" x 6" that broke off, and was incredibly clear. Pretty neat stuff.

Yep. And the running water explanation would explain why icicles (From outside) are clear.

Maybe someone should just make Hollow Lucite Cube Shapes filled with a Clear Feezable Liquid and just call it a day. :smiley: