Nitrogen gas has several uses in retail food and services establishment. Its liquid form is used as a freezing agent in food preservation as well as preparation of rapid freezing of foods, to chill beverages rapidly and to process dry herbs. In the preservation of frozen foods, where mechanical means are unavailable, dry ice is the best thing to use. Liquid nitrogen and dry ice, both things are used for their smoke effect in food & beverages to enhance the presentation and consumer appeal.
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