Liquid nitrogen cocktail in the preparation of frozen desserts, such as ice cream, which can be created within moments at the table because of the speed at which it cools food. Similarly, liquid nitrogen has become popular in the preparation of cocktails because it can be used to quickly chill glasses or freeze ingredients. It is also added to drinks to create a smoky effect, which is created by the cold nitrogen vapour (liquid nitrogen boils at -195.8 Celsius at normal atmospheric pressure) condensing the moisture (i.e., water vapor) in the surrounding air above. Because of its low temperature liquid nitrogen can be
Ice cream ice cream cones were served in the 19th century, and their popularity increased greatly during the St. Louis World's Fair in 1904. According to legend, at the World's Fair an ice cream seller had run out of the cardboard dishes used to put ice cream scoops in, so they could not sell any more produce. Next door to the ice cream booth was a Syrian waffle booth, unsuccessful due to intense heat; the waffle maker offered to make cones by rolling up his waffles and the new product sold well, and was widely copied by other vendors. The following is