The U.S. Food and Drug Administration alerts consumers and retailers of the potential for serious injury from eating, drinking, or handling food products prepared by adding liquid nitrogen at the point of sale, immediately before consumption.
These products are often marketed under the names "Dragon's Breath," "Heaven's Breath," "nitro puff" and other similar names.
[...] Foods and drinks prepared by adding liquid nitrogen immediately before consumption may be sold in malls, food courts, kiosks, state or local fairs, and other food retail locations. These products may include liquid nitrogen-infused colorful cereal or cheese puffs that emit a misty or smoke-like vapor. Similarly, alcoholic and non-alcoholic drinks prepared with liquid nitrogen emit a fog.
The FDA has become aware of severe -- and in some cases, life-threatening -- injuries, such as damage to skin and internal organs caused by liquid nitrogen still present in the food or drink. There has also been a report of difficulty breathing after inhaling the vapor released by liquid nitrogen when added immediately before consumption. Injuries have occurred from handling or eating products prepared by adding liquid nitrogen immediately before consumption, even after the liquid nitrogen has fully evaporated due to the extremely low temperature of the food.
(Score: 2) by fritsd on Tuesday September 04 2018, @04:11PM
It's a gas at tummy temperature. I don't remember how much it expands from -196°C to +35°C but it's probably quite a bit.