How To Make Ice Cream Without A Freezer
Posted on July 27th, 2010 in General
In this video, the Science So What? team shows how it’s possible to make ice cream without using a freezer, but using liquid nitrogen. The guys explain how most of the air we breathe is nitrogen (78%), 20% is oxygen and the rest is a mixture of gases. When nitrogen is very, very cold, at a temperature of -196C, it becomes a liquid and is particularly useful for freezing food because it has no smell, colour or taste.
