What is gutter oil?
Gutter oil refers to poor-quality oils from life, such as oil that has been repeatedly used for deep-frying or recycled oil that has been used. The biggest source of gutter oil is the grease traps in the sewers of large urban restaurants or other catering hotels. Long-term consumption is very harmful to the body and can cause cancer. Think of gutter oil in the sewers and cooking oil in the garbage cans, fished out with a foul odor, but just by simple separation, it is transformed into table food.
So how to distinguish gutter oil it:
A, look at the color
Normal cooking oil is clarified, gutter oil is cloudy, dark color. This is because of the impurities, waxes, and coloring mixed in during the long processing time, repeated heating, and repeated placement of harmful substances. The color of the oil changes without you realizing it
Two, the feel of the oil
Gutter oil in the repeated use of the process will have a sticky feeling, take a little bit of it in the palm of your hand back and forth rubbing the heat can be felt. The normal use of the oil is not sticky. And it is very difficult to clean normal dishes with gutter oil.
Three, smell
Every normal healthy oil will have its own flavor. Take two drops and rub them on your hands, and smell them close together for a special fresh flavor. On the other hand, if it is gutter oil, it will emit a pungent, disgusting and unpleasant odor.
Four, look at the solidification time
Gutter oil solidification point is lower than normal oil, this is because in the processing process, mixed with a lot of various impurities. In the summer put the oil in the refrigerator for a few hours and then take it out. If the oil solidifies it is not gutter oil, and vice versa.
Fifth, listen to the sound of burning
Take out a drop or two of the oil at the bottom and put it on a piece of paper to burn. Generally speaking, normal oil will not make a sound, if it is gutter oil will make a sound. The "squeaky" burning sound indicates that it contains a lot of water, and if it makes a "crackling" sound, it indicates that the water content is seriously excessive, and these oils are not to be purchased
Lastly: Buy oil! The first thing you need to do is to go to some regular supermarkets or stores that have a record of purchasing tickets. There is an expiration date, use period and manufacturer, after-sales service and other materials identification. Don't go to some cheap stalls to buy oil. You think you take advantage of the cheap, in fact, exactly the damage is your health, to the back of the problem, and then have to spend a lot of money to carry out treatment. Normally, if you can cook for yourself, you can do it yourself or go to a brick-and-mortar restaurant to eat, which is healthier. Try not to order the kind of takeout that looks especially cheap and meaty. Even if you usually use the oil at home, do not repeatedly fry, so there is no difference with gutter oil. Disease enters by the mouth, reasonable purchase of oil.