Oil that has expired for 3 years but has not been opened cannot be eaten.

Consuming expired oil may cause adverse reactions. Oil usually refers to cooking oil, 3 years after the expiration date of cooking oil, even if it is not opened, there may be a large number of bacteria, may be due to the role of bacteria, air, etc. appeared in the rancidity of fats and oils, so that the composition of the food is damaged, consumption may lead to food poisoning.

How to deal with expired unopened oil

1, making handmade soap. Expired oil we can make the most of them into handmade soap so that the money to save a piece of soap, but also these expired oil to it to get rid of, we need to prepare some things, first of all, first of all, get 1 ml of exhaust oil, get 4 hundred milliliters of water, and 2 hundred grams of sodium hydroxide, as well as salt, sugar, each a spoon, and finally come back to 2 tablespoons of flour on it.

First we prepare a pot, pour some cold water into it, then add sugar and salt, let them melt, and then add sodium hydroxide, the purpose is to make the water become cloudy, then you may see some smoke floating up, this is purely normal phenomenon! Just stir slowly and the water will turn green.

And then let it add cooking oil and flour will be fully mixed, wait 15 minutes, and then put them in the box, and then placed in a ventilated place and so on for four or five days after a piece of soap on the perfect birth!

2, as a lubricant. Cooking oil is not lubricating oil, but it also belongs to a good lubricant, its lubricating degree is not worse than lubricating oil, we can smear it in the home of those zippers and so on the top, so that you can make the original not much movement of the zipper, instantly sliding up, not only that with cooking oil coating can also prevent the zipper rust!

3, can be used to raise flowers. Use expired cooking oil to raise flowers is a very good fertilizer, can be very good nourishment of flowers and plants, so that the plants fully absorb nutrients, in addition to the plant can also be very good to promote the absorption of the plant, just a small cup of oil poured into the pot can be, to control the amount, because watering more plants will also feel too tired, so about a month to pour once.