First, the oil is treated
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1, remove excessive water in the oil. Heat the oil while stirring to prevent overflow, until the oil smoke, no bubble so far.
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2, remove impurities in the oil.
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(1) Precipitate the oil and then use it for French fries.
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(2) Take a spoon and skim the foam out.
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(3) Add salt or peppercorns or ginger slices to calm the foam.
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(4) If there is still scum in the oil, put a piece of white radish with many small holes into the oil pan, and the white radish will suck the scum inside to the top.
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3. Increase the oil temperature. The oil temperature stays in the low temperature area for a long time is easy to foam, and the appropriate increase of the oil temperature can reduce the foam.
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Second, control the moisture of dry potato strips
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If the potato bar moisture is too much, it will turn into steam when fried, and water vapor is insoluble in oil, which will lead to foaming. We should heat the oil before frying, if there is no bubble in the process of hot oil, the possibility of too high water content and too high impurities in the oil is excluded, indicating that it is mainly due to the water content of the ingredients is too high, and the water control of the French fries should be dried when the French fries are next.
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Three, change the appropriate new oil
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1. Change the oil that is not easy to foam. Refined oil containing little phospholipid can be used. Oil with high phospholipid content, such as soybean oil, is easier to foam, phospholipid is easy to absorb water, and phospholipid itself is a good surfactant, so that oil and water emulsification, producing rich foam and overflowing; And refined oil because the phospholipid has been basically removed, so almost no such phenomenon.
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2. Change the oil. Oil can no longer be used for a long time, it will foam, and it is not good for your health.
Change the oil, French fries foam at the beginning because the quality of the oil is not good, you can change the soybean oil, soybean oil is a pure natural oil, used to fry potatoes is the best, after frying the oil can also continue to fry food
1. If the unused oil froth at the beginning of frying, the oil quality is not good. If the oil is not soybean oil, it should be replaced with good quality oil.
2. If you use soybean oil, first heat the oil and then wait for the oil temperature to drop and then fry it without foam;
3, if it is fried for a period of time after foaming is nothing abnormal, because when frying food oil dissolved into some soluble impurities, it will foam. But these soluble impurities are not all harmful, some are very good for the body's health of minerals and trace elements.