Cooling Beer With Urea Fertilizer

The first attempt to use urea fertilizer to cool a beer was disappointing. The trick is to use a 2-step process.

Cool some water in a can by placing it in a 'bath' of water and urea. Then take the cooled water and further cool it by adding urea to it. A beer can is then cooled by spinning it for 8-10 minutes in the second cooling 'bath'. - Cooling a beverage can to below 10c.

This cooling method could come very handy on a camping trip when there is no ice available.

Urea fertilizer

Can spinner

Water

Container

Pour 500 mils of water into an open container which is big enough to fit a beer can in a water 'bath'. Add in 270 grams of urea and stir. 

Fill an empty 500 mill aluminum can with water. Attach the can spinner and spin the can in the water bath for 10 minutes. This will lower the temperature of the water in the can to about 13c.

Pour out the water bath into a bottle to be later used to fertilizer your garden. (Dilute to 1:63 water)

Next, pour cooled water into the container. Add in 270gms urea, stir. Attach a 375 mil can of beer to a can spinner and spin in water bath for 10 minutes.

Take out, rinse off and enjoy a nicely cooled beverage 

Another way to cool a beverage is to add in an ice pop into a glass containing the beverage. Adding one to a glass of beer will also create a shandy (lemonade and beer) at the same time.

A wet paper towel was wrapped around a beer can and air blown onto it for 30 minutes. The beverage was cooled by 1.4c. while there was a slight cooling effect it wasn't that much.

More beer cooling experiments can be found here.