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
Crab ice cream Crab ice cream Crab ice cream is a flavour of ice cream with crab. Invented by the Japanese and known to them as "Kani aisu", it is described as having a sweet taste. It is offered in some food establishments, particularly ice cream parlours, such as Heston Blumenthal's The Fat Duck restaurant, and the Venezuelan Coromoto, which offers the largest number of ice cream flavours in the world. Crab ice cream is a Japanese creation. The island of Hokkaido, Japan, is known for manufacturing crab ice cream. According to Heston Blumenthal's recipe for crab ice cream, it is made by