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Food-grade liquid nitrogen

Application of food-grade liquid nitrogen in food industry

Food-Grade liquid nitrogen is widely used in the food industry, whether it is used in restaurant cooking or in the ice cream industry.

liquid nitrogen in food industry

What is Liquid Nitrogen?

Scientifically, liquid nitrogen is a colorless, odorless nitrogen that is at its lowest temperature in the liquid state. The air is compressed and heated until the gaseous state turns into a liquid. An industrial process called distillation is used to produce liquid nitrogen. One of the most prominent properties of liquid nitrogen is that it freezes quickly and is therefore commonly used to make ice cream. It is also one of the few chemicals that can be easily stored and transported from one place to another.

Cooking applications of liquid nitrogen

Due to its convenient transportation and availability, liquid nitrogen is used in many culinary preparations. Molecular gastronomy is one area where the use of liquid nitrogen is abundant. Whether it is delicious desserts or fancy cocktails, you will find many restaurants that serve you food by creating a white cloud of smoke to give your food or drink an interesting flavor. Nitrogen ice cream is perhaps one of the strangest food production processes. Because liquid nitrogen is so cold, it can easily freeze food instantly and is therefore used to make ice cream that has a more velvety texture than ice cream made using traditional machines. In addition, frozen packaged foods use liquid nitrogen to keep the ingredients fresh.

How safe is it?

Liquid nitrogen may be the newest ingredient used in modern cooking, but is it safe or should we be concerned? In 2012, Professor Peter Barham of the University of Bristol School of Physics shared his views on the use of liquid nitrogen after much research. According to him, nitrogen is a harmless gas that cools at a very low temperature and turns into a liquid. Liquid nitrogen is extremely cold, so it is important to take proper safety precautions when handling it as it can cause frostbite and cold burns, such as the effects of steam or hot oil. He also suggested that you should never swallow liquid nitrogen, and if your dish is served with it, wait until everything is steamed before consuming the liquid.

We asked Dr. Anjou Sood, a Bangalore-based nutritionist, to clarify this. He told us, “Liquid nitrogen is an inert liquid, which makes it very stable. Chemically, it does not need electrons to complete itself. Therefore, it interferes with the substances in the container or beverage that is mixed. does not have. However, your added amount must be in accordance with the rules and instructions for its use, which is safe. Once the liquid has evaporated and turned into nitrogen gas again, it may not harm you but you should never consume it. Dr. Tapasya Mundhra, a nutritionist based in Delhi, adds, “Liquid nitrogen can be unsafe if used unintentionally, but if used properly, it may do no harm. “Be well aware of the use and effects of liquid nitrogen.”

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