Liquid nitrogen evaporates, and can cause violent oxidation of organic material. Ingestion of liquid nitrogen can cause severe internal damage, due to freezing of the tissues which come in contact with it and to the volume of gaseous nitrogen evolved as the liquid is warmed by body heat. In 1997, a physics student demonstrating the Leidenfrost effect by holding liquid nitrogen in his mouth accidentally swallowed the substance, resulting in near-fatal injuries. This was apparently the first case in medical literature of liquid nitrogen ingestion. In 2012, a young woman in England had her stomach removed after ingesting a cocktail made with
Stir-fried ice cream Stir-fried ice cream Stir-fried ice cream, also known as rolled ice cream, is a sweetened frozen dessert. It is made using milk, cream, and sugars as well as other added ingredients to increase the flavour. The liquid mixture is stirred to incorporate air spaces on an ice pan and simultaneously cooled to -20 degrees. Once the rolling process is complete, the result is rolls of smooth, semi-solid ice cream or gelato. The rolls are placed in a vertical position in an ice cream cup and topped off with various toppings and decorations. This style of ice cream is consumed by