Refrigerate in order for the doughnut noodles not to over launch, so that the shape of the doughnut noodles can be made better and fixed.

If you leave it at about 25 degrees, too much time will wake up the noodles too much. When the oil temperature is high, the doughnuts go in quickly and the skin hardens, and there is not enough time for them to expand. But the temperature is low also can't, frying slow, and absorb more oil is also more greasy! Between 190 degrees -200 degrees is more appropriate.

Doughnut, is an ancient Chinese noodle, long hollow fried food, crunchy and tough, one of the traditional Chinese breakfast.

Expanded Information:

The principle of the initiation of the doughnut is:

When the doughnut enters the frying pan, the blowing agent is heated to produce gas and the doughnut expands. But because the oil temperature is very high, the surface of the doughnut immediately hardened, affecting the doughnut to continue to expand, so the doughnut used every two up and down stacked, with bamboo chopsticks in the middle of the pressure of the program, between the two blocks of water vapor and foaming gases continue to overflow, the hot oil can not come into contact with the two blocks of the combination of the two blocks of the doughnut, so that the combined blocks of doughnut in the soft pasty state can be constantly expanding, the doughnut is more and more fluffy.

Whether the fritters can be fried and loose, and crispy, and yellow, and fragrant, the production of the main points are: each two up and down stacked, with bamboo chopsticks in the middle of the pressure; can not be pressed too tightly, so as to avoid the two stick together, the edge of the two blocks of dough can not be stuck; can not be pressed too lightly, to ensure that the fritters in the deep-fried two are not separated; rotating in order to ensure that the above requirements, and at the same time in the process of deep-fried, easy to turn. Rotating is to ensure the above requirements, and at the same time, it is easy to turn during the frying process. When you pinch the two ends lightly, you should pinch the middle of the two ends gently, and the two ends should not be separated during the frying process.

Reference:

Doughnuts ---- Baidu Wiki