It depends on the temperature of your frying, the amount of frying and the frequency of use to determine, rather than simply based on time, intuitive judgment is the amount of smoke, the color deepens is the time to change the scientific point is to test the peroxide value. General home frying things, a pot of oil is not recommended to use more than three times. Frying more often made out of food carcinogenic.

Fried stuff oil can still eat

Generally speaking, fried food oil can be eaten, fried oil just can not be re-heated, not eaten. However, if after deep-frying, the oil body appears to be very dark in color, viscosity and impurities, then it is recommended to no longer eat. If the oil color is not too dark, not too thick and few impurities, such oil can continue to eat. And consumption of oil after deep-frying, first of all, the oil should be left to stand for a period of time, so that the dregs of the bottom of the precipitation, with the use of the bottom of the part with dregs of the turbid oil poured.

The fried oil should be preserved with special care. If the oil is heated at a high temperature and stored open, it will become acidic. So usually eat the rest of the oil if you do not want to throw, must be put into a sealed container storage, so as to avoid the oil produce strange flavor. Light, contact with air, high temperature will accelerate the rancidity and decomposition of the oil, resulting in a halo odor and products that affect health.

What can you do with leftover frying oil

The cooking oil left over from deep-frying food is not waste oil, but can still be utilized wisely.

1, to do seasoning oil

Home cooking cold dishes, mixing noodles, very like to add a little onion oil, garlic oil, pepper oil, chili oil and so on to flavor. You may want to take advantage of the oil temperature when frying food near the end, to throw in a variety of seasonings, to make a fragrant seasoning oil. Such as fried eggplant box is about to finish, ready to a large number of peppercorns, turn to a small fire, slowly frying peppercorns, until the flavor of the material into the oil, turn off the fire, filter off the scum and peppercorns, the peppercorns scented oil poured into a porcelain jar or bottle, airtight, and put it into the refrigerator, and then later used for flavoring can be.

Another example is that after frying the croquettes, put in crushed chili peppers and garlic, etc., and fry for two minutes, then drizzle it onto a bowl of crushed chili peppers, cool and strain it to make chili oil, and refrigerate it airtight for later use. Because these spices have some antioxidant effect, objectively also extend the preservation time of the oil, you can eat for half a month time.

2, do pasta

Do cakes, biscuits, rolls, snacks and other pasta need to put some oil. This is the time to put the filtered leftover oil. Because the internal temperature of the cake is not too high when baking, not more than 100 ℃, and there is also the protection of the starch in the dough, the oil will not be significantly oxidized.