How to tell if oil is gutter oil, and how to tell if gutter oil

1. Look at the transparency, regular edible oil is transparent, and it is very clear at a glance, while gutter oil is opaque, and there are many impurities in it.

2. Look at the color, the regular edible oil is light yellow, no impurities and no sediment, while the gutter oil is golden yellow or yellow-brown, and the darker the color is to the bottom.

3. Smell the taste, the regular edible oil has a clear fragrance, among which the peanut oil has the strongest taste, and the taste of gutter oil is sour and very unpleasant.

4. Taste, regular cooking oil does not have any taste, and gutter oil has a sour taste, as if it has deteriorated.

There is a trick to identifying gutter oil, and it would be a pity not to know.

One look: look at the transparency, the pure vegetable oil is transparent, and the transparency of gutter oil will decrease due to the mixing of alkaline lipids, waxes, impurities and other substances in the production process; Look at the color, the pure oil is colorless, and the oil will be colored because the pigment in the oil is dissolved in the oil during the production process; Looking at the sediment, the main component of gutter oil is impurities.

Second smell: Each oil has its own unique smell. You can put a drop or two of oil on the palm of your hand, rub your hands together, and smell it carefully when it is hot. If there is a peculiar smell of oil, it means that there is a problem with the quality, and the smell is likely to be gutter oil, and if there is a smell of mineral oil, you can't buy it.

Three tastes: Take a drop of oil with chopsticks and taste it carefully. The oil with a sour taste is an unqualified product, the oil with a burnt bitter taste has become rancid, and the oil with a peculiar smell may be gutter oil.

Four listening: Take a drop or two of oil from the bottom of the oil layer, apply it to a flammable piece of paper, light it and listen to its sound. Qualified products are those that burn normally and silently; If the combustion is abnormal and makes a "squeak" sound, the moisture exceeds the standard, and it is an unqualified product; When burning, it makes a "crackling"** sound, indicating that the moisture content of the oil is seriously exceeded, and it may be an adulterated product, and it should never be purchased.

The methods that the experts said are not operational, we usually eat street stalls, you can't take the oil used by the boss to study it first. In short, eat less at roadside stalls and small restaurants. Gutter oil has no fragrance, if a dish is served with oil, but it doesn't taste fragrant at all, it's basically not good, don't eat it next time.

If it is your own home, you should go to the supermarket to buy brand oil, don't be greedy to play in bulk, even if it is not gutter oil, if the quality is poor, it is not good for health.

Look at the color. The red ones are almost the same.

There is a trick to identifying gutter oil, and it would be a pity not to know.

There is a simple and easy-to-do method, generally restaurants put a lot of vegetable oil, you can take a little paper towel to absorb a little, and the fishy smell is soybean oil.

The scent of peanut oil you understand.

The taste of lard is also more pronounced.

The flavor of corn oil is quite light, not fragrant but also meaningless.

Olive oil is not possible in restaurants.

Gutter oil: When the vegetable is just broken, there is a very unnatural fragrance, it is a little sour incense, it is mixed with additives, if it is inferior gutter oil, it is easier, it smells stinky, and it is very easy to distinguish the oil from the fried meat with chili.

If you can ask them for a little oil in the kitchen, you can scoop it out with a spoon and put it in the water to see, it is slow to disperse, crystal clear is not gutter oil, if you put it down, it will spread out, and it is turbid, it is definitely not a good oil.

Then it is to use paper to test, stick some oil, and the smell of burning is the burning smell of paper and the taste of the oil itself, it is easy to distinguish between fragrant and peculiar smell, and it is also distinguished whether it is good oil.

Smell the serious oil has a clear fragrance.

Gutter oil has the smell of frying and is cloudy.

The color is not bright and there are many impurities.

How to identify gutter oil, teach you a few tricks, simple and practical.

There is a trick to identifying gutter oil, and it would be a pity not to know.

Four tricks can be distinguished:

Taste: If the oil has a spicy taste, then it is likely to be an edible oil made from gutter oil;

Distinguish the peculiar smell: take a small amount of edible oil in the palm of the hand, rub it back and forth with the palm of your hand, if there is a peculiar smell, it is likely to be mixed with gutter oil;

Put it in the refrigerator: Put the oil in the refrigerator in the refrigerated area of 5 to 8 degrees Celsius, if there is white precipitation, it is likely to be gutter oil. Because in the process of processing edible oil from gutter oil, the suspect has not yet solved the technical problem of separating vegetable oil and animal oil;

High fire: If the color of the oil changes after firing at high heat, and the color becomes thick and black, it is likely to be gutter oil, because the small particles contained in gutter oil are easy to change color after being burned.

I think the oil I bought has that stuff in it.

There is a trick to identifying gutter oil, and it would be a pity not to know.