# Clear Ice Cubes **URL:** \ **Category:** Factual Questions\ **Created:** [November 28, 2013, 12:56am UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973 "2013-11-28T00:56:41Z")\ **Posts on this page:** 5\ **Page:** 2
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [December 3, 2013, 7:22pm UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973/21 "2013-12-03T19:22:47Z")
> [@rowrrbazzle](#): > > If the problem is air bubbles, wouldn’t a cheap vacuum pump do the job? [Amazon.com](http://www.amazon.com/GSC-Vacuum-Pump-Hand-Operated/dp/B001DBOUOC) 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. > [@rowrrbazzle](#): > > Your video is confusing because you show a plastic glass and a pitcher, you make a mold around the pitcher, but later you switch the pitcher and its mold without comment for the plastic glass and its mold. An annotation, at least, would seem to be a good idea. 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… ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 3, 2013, 7:34pm UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973/22 "2013-12-03T19:34:10Z")
> [@kayaker](#): > > In blind taste tests . . . We’ve replaced John’s perfectly clear ice cubes with lucite. Let’s see if he notices … ---
**Author:** ![Digital\_is\_the\_new\_Analog](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@Digital\_is\_the\_new\_Analog](https://boards.straightdope.com/u/Digital_is_the_new_Analog)\ **Post date:** [December 4, 2013, 3:47am UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973/23 "2013-12-04T03:47:23Z")
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. ---
**Author:** ![Grrr](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/grrr/32/146_2.png) [@Grrr](https://boards.straightdope.com/u/Grrr)\ **Post date:** [December 4, 2013, 4:26am UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973/24 "2013-12-04T04:26:50Z")
> [@Digital\_is\_the\_new\_Analog](#): > > 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. ---
**Author:** ![Jamicat](https://avatars.discourse-cdn.com/v4/letter/j/c67d28/32.png) [@Jamicat](https://boards.straightdope.com/u/Jamicat)\ **Post date:** [December 4, 2013, 4:39am UTC](https://boards.straightdope.com/t/clear-ice-cubes/674973/25 "2013-12-04T04:39:52Z")
Maybe someone should just make Hollow Lucite Cube Shapes filled with a Clear Feezable Liquid and just call it a day. 😃 [Previous page](https://boards.straightdope.com/t/clear-ice-cubes/674973.md?page=1)