Food Industry


This is an infrared image of two burritos after they have been heated in a microwave oven. Notice how the microwave cooks them unevenly. The hottest areas are at the outside edges of the burritos while the central areas are the coolest.

Infrared sensor technology is applied in the food industry to measure moisture, oil, fat, carbohydrates, protein, sugars, and caffeine in food products. Infrared measurements are performed without coming into direct contact with the food products, and they can be done very quickly. Near-infrared light is used to reveal hidden insect infestations in products like wheat. Infrared testing is also done on equipment involved in food handling and storage. These tests have saved millions of dollars by helping to prevent food spoilage.


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