1, indigestion

Gutter oil has many kinds of toxic substances, arsenic is one of them, if you eat a certain amount of it, there will be a headache, dizziness, fatigue, etc., and more serious impact on the digestive tract leading to digestive disorders.

2, diarrhea

Gutter oil are refined from sewage waterways, but also the refining of rotten animal meat and rotten animal offal, which is destined to be gutter oil is not hygienic, and even the oil inside the poisonous microorganisms are tens of thousands of eat such oil can not diarrhea is strange

3, abdominal pain

Gutter oil contains A variety of detergents and chemical cleaning substances, so the content of lead in the gutter oil is amazingly high, those black hearted workshops do not know how to purify the gutter oil, but instead will increase a lot of other chemicals, lead into the body will cause abdominal cramps and anemia, serious lead poisoning damage to the liver function

2, dishes in the oil is not bright, cloudy color, it is estimated to put many times used poor quality oil, because the oil in the heating process will gradually darken the color.

3. Fresh, certified vegetable oil is smooth and easy to flow, not greasy, and it's easy to swish the oil around in the water. Gutter oil, on the other hand, has a sticky texture, is not refreshing to eat, and is difficult to remove even in hot water. You can also put a few drops of oil on your finger and rub it back and forth with your fingertips, and if you get a sticky feeling, you are very likely to use gutter oil.

4. When you pack your food, put it in the refrigerator and take it out after a few hours. If the grease has solidified or semi-solidified, indicating that the quality of grease is poor, or the use of animal oils such as lard, trans fatty acids, saturated fatty acid content is high, so the oil eaten too much is not good for the heart.

People's Daily Online - What are the dangers of gutter oil?5 strokes to identify gutter oil