Waste oil turned into clean oil.
This is my most commonly used method. I usually cook fried foods, such as tomato boxes and lotus root boxes, because there will be some batter left every time. Don't pour out these batter, add a little water and mix well. Pour it directly into the oil pan and don't turn off the fire of the induction cooker. Fry the batter into cakes, so that most of the impurities in the oil will be absorbed by the batter, and the natural oil will be clear. If there are too many impurities in the oil,
Share an oil-absorbing batter formula: low-gluten flour+a small amount of glutinous rice flour and mix well.