Fried food is irresistible

Frying is the cooking of food in oil or another fat. Chemically, oils and fats are the same, differing only in melting point, and the distinction is only made when needed. Foods can be fried in a variety of fats, including lard, vegetable oil, rapeseed oil and olive oil.
 
Why fried things are very delicious? Why most people like to eat fried food? The answer is simliar to why people like eating sweets. High calorie, high fat food is good for survival in the long process of human evolution. Natural selection makes it easier for people who like this kind of food to survive and reproduce. The most significant attributes of fried foods are: high fat cooked food. The more the more fertile grease, baked or cooked food is more conducive to survival.The gene which love to eat high fat food has been preserved for generations.

In addition to natural and historical reasons, frying can uniform heating, the oil has good thermal conductivity, which can form a uniform temperature field. It is conducive to the color of dishes, beneficial to the formation of the aroma of food, is conducive to the quality of dishes and conducive to the forming of dishes, and oil can be used as heat transfer medium to improve the nutritional value of dishes.

So, most snacks on the market is fried food, such as potato chips,French fires, chicken nuggets, fried patty. Fried foods on the market are often more delicious than homemade, because of the frying technology.

Industrial enterprises producing deep-fried snack foods such as potato chips or French fries potatoes use automated frying systems that consist mainly of the actual frying machine, a tube type heat exchanger to heat the frying oil, a filter, a circulation pump, a tank for fresh oil and the automation system -- PLC. As the product leaving the fryer contains a percentage of oil there is a constant flow of fresh oil into the system. Sensors for the temperature of the oil, the oil level, different pressures in the system and other parameters are used as input for the PLC.
So in a fully automatic process, the machine can control the time and temperature, It's better than the pan and kitchen time in our hands.