Fat or Oil Heating Deep Frying

Deep fiying is one of the methods of food preparation used both in the home and in industry. Meat, fish, doughnuls, potato chips or french fries are dipped into fat (oil) heated to about 180 °C. After several minutes of frying, the food is sufficiently tender to be served. 

The frying fat or oil changes substantially in its chemical and physical properties after prolonged use. Data for a partially hydrogenated soybean oil 

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