What do you do with the oil left after you deep fry?

Here's a good article about the hazardous effect of prolonged use of cooking oils. http://www.fehd.gov.hk/publications/text/oil.html Based on the article, I have no more qualms re-using oil left from deep frying until it turns rancid or destroys the taste of the food. When the oil is not fit for cooking anymore, I eventually discard it. The problem for me is disposing the used oil not fit for cooking human food. The oil can cause clogging when thrown in the sewerage. I heard that they are used for animal food production and as alternate vehicle fuels but there is no one collecting household oil wastes for such purposes. With such problems (possible health hazard and disposal), I think I really have to avoid deep frying and even frying as much as possible.

I think you have heard rightly,if the oil, which has already been used, is re-used again, it might cause some problems. However, I've noticed that my better half frying something or the other in the left out oil.

I usually use it once or twice more, before throwing it away. It seems such a waste, especially if it looks so clear.

We usually use it about 5 or 6 times to deep fry. The last thing we usually fry is fish and after that we throw the oil away. I have used some of it for frying stuff and there was nothing wrong with that. I don't think you have to throw it out.

This is my biggest problem in menu planning. My solution is simple, I use deep fry method only once a week & then use all these oils for tempering or in griddling. It is very bad if you re-fry in that oil. So i use the oil in all other forms. I also keep deepfrying in weekends. This way i have time on my hand & fry small pieces in little oil instead of frying bigger portions in large pan. In hotels they use a paper oil filter to reuse the fried oil. but this method does not change the characteristics of the oil & only changes the colour of the oil.

well, honestly, i keep it. i'm still living after 34 years :)

We do a lot of deep frying out of doors. We even do turkey's several times a year. After we are done frying for a session we set the oil pot to cool. Some times we strain the old, but not always. When the oil is cool we place the well covered pot in our freezer until the next time. I don't think that there is much risk to our health when we freeze it so soon.

I see no use to waste oil that you have only used to fry frenchfries once or twice. Potatoes clean the grease, I do not use grease that fish or seafood has been fried in a second time.

Hi pickwick, I also heard that repeated use of same oil will cause cancer. So we should be very careful for this thing. If we throw away some oil it won’t be a matter for comparing the serious health problem. I don’t like to reuse the oil as I am concern about the health of my family. I am preparing fried foods very rarely. Fried foods are very tasty but it causes many health hazards. I am trying to use less oil for preparing ‘curry’.

We usually toss after one use but we don't have a deep fryer but a frying pan with a decent depth to make french fries or jalipenio poppers.

if i use oil for deepfrying, i will not reuse it again for deepfrying. i will use the used oil, in some curries i prepare daily or i will use them for any shallow fried items . this way there will be no health problems. same oil we should not use more times for deep frying. after deepfrying ,First, let it cool. Don’t try to move the fryer until it’s pretty close to room temperature. If you strain the oil through cheesecloth to remove all the particles, you can reuse the oil. Just put it back in the original container and store at room temperature. You might not want to use it for deep-frying again, however—when oil is heated to frying temperatures multiple times, its smoke point goes down. You can also use your oil to power a car. There is a grass-roots movement of people who modify their cars’ engines to run on straight, unprocessed waste vegetable oil (WVO). Or you can give it to somebody who can make biodiesel out of it—a nontoxic, biodegradable, and clean-burning fuel made from vegetable oil or animal fat that needs to be processed a bit first, and then can power a diesel car. The used oil is filtered and processed into tallow, which is then sold and broken down into other chemicals for soap, animal feed, or any of a range of other products, from soap to shampoo to dynamite.source:http://www.chow.com/stories/10199

we don't really throw them immedietely after use. we still use them until it needs to be changed. we still fry foods couple of times then throw it afterwards.

Hi, it would depend on the food I fried. But I usually use the oil up to 3 times when I see that the texture is still good.

we do have an oil brand here that promises still-good oil after how many uses. i don't normally wait for that max number of use, but i use it about 2 or 3 times, depending on what i fried in it.

Well, it is my mum does cooking for me and my family so she should be the best person to tell you about it but when I was away from my house, I used to have that in a bottle or bows and use it for next time cooking. I know it is not healthy but it was like throwing your money too, isn't it?