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
Herrell's Ice Cream Herrell's Ice Cream Herrell's Ice Cream is a chain of ice cream stores located in Massachusetts and New York, featuring over 200 homemade flavors. Steve's Ice Cream was founded in 1973 in Somerville, Massachusetts by Steve Herrell. By mechanically altering a small batch commercial freezer, Herrell produced an extraordinarily rich, creamy, low-air ice cream. Herrell was introduced to the Heath candy bar by a friend in the late 1960s and felt that it would make an excellent addition to ice cream. When he opened his first store, instead of having pre-mixed flavors like chocolate chip, he had his staff mix