Using Salt Walter as an Insulator to Make Clear Ice
The Pink Peanut Drink

More Fun with Ice: The Time Bomb

The fun with ice continues! In ongoing experiments freezing things in ice, I decided to try freezing food coloring in the middle of an ice cube. Then when the ice melts, the coloring will release and change the drink. 

Ice in glass_tn
Click on the link below to see how I did it and what happened. 

The first step was to make perfectly clear ice.  Then I heated the stubby end of a bar spoon in a pot of boiling water and kept plunging it into the ice until I made a tunnel. 


Ice with hole_tn
Then I added several drops of food coloring. After I let that freeze for a few hours, I added a couple drops of water and let that freeze. I then added more water to top it up and seal the cube.

Ice filled with food coloring_tn
  Then it was time to add the time bomb to a beverage. I just used water for this first demonstration. 

Ice with coloring in glass2_tn
The ice melted a bit then turned sideways.

Ice sideways in glass_tn
After a few minutes, the dramatic leak began.

Leaking first_tn
Leaking 1_tn
Leak 5_tn

And finally, all was black. 

Black glass_tn
So, this little trick works fairly well. Drink fast or your cocktail turns black!

The ice I use to fill the hole after adding the food coloring is very cloudy, but I don't think it's so terrible. 

This method could be used to add other things to drink beyond color: perhaps it could be filled with bitters, or citrus oil, or absinthe to change the flavor of a drink mid-way through it. 

An index of all of the ice experiments on Alcademics can be found here.