More and more people in the market like to eat fruit and vegetable chips, so what is the working principle of the low-temperature vacuum fryer for fruit and vegetable chips ? Let me introduce the working principle of the vacuum fryer.
Low-temperature vacuum frying machine works: The vacuum system is a vacuum degree of the 0.093Mpa set, i.e. a pressure of 0.09Mpa a boiling point of about 40 degrees, the negative pressure in the vacuum state, the oil as a heat transfer medium, The water in the food will evaporate rapidly and eject from the object, and the heat enters the inside of the food tissue, thereby expanding the food cells to achieve a soft and porous structure. In the aqueous food, the vacuum is closely related to the low temperature, and is high. Under vacuum conditions, the disadvantages caused by high-temperature frying and food nutrient loss can be avoided. The equipment performance of the vacuum fryer, the fragrance protection effect: vacuum frying, the raw material is heated under the sealed vacuum state. Most of the flavoring ingredients in the raw materials are water-soluble, do not dissolve in the fats and oils, and these flavoring components are further concentrated as the raw materials are dehydrated. Thus, the vacuum frying technique can well preserve the aroma of the raw material itself.
The vacuum fryer can reduce the degree of deterioration of the oil: the deterioration of the fried oil includes oxidation, polymerization, thermal decomposition, and the hydrolysis is mainly caused by contact of water or steam with oil. In the vacuum frying process, the oil is in a negative pressure state, and the German gas is quickly released in a large amount in the oil, the generated water vapor pressure is small, and the frying temperature is low, whereby the degree of deterioration of the oil is greatly reduced.
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