How to identify waste cooking oil in daily life

People must have heard of gutter oil, and they also know that this kind of oil has many harmful effects and is not suitable for human consumption. However, many people don’t know much about gutter oil and don’t know how to identify it. The following editor will teach you a few tricks and tell you how to identify gutter oil in daily life.

1. Look with your eyes

In daily life, you can use your eyes to identify gutter oil. If you find that the edible oil has poor transparency, dark color, and sediment at the bottom of the oil, it means that wax and alkali were added during the production process of the edible oil, and it is likely to be recycled gutter oil.

2. Smell

In daily life, we can also identify gutter oil by its smell. Each edible oil has its own unique aroma, such as soybean oil has a bean aroma, and peanut oil has a peanut aroma. However, if the edible oil has a distinct peculiar or pungent smell, it means that the edible oil is gutter oil and can no longer be eaten.

3. Taste

In daily life, we can also identify gutter oil by tasting it. Normal cooking oil has a light fragrance. If you find that the cooking oil has a sour taste, it means that the quality of the cooking oil is poor and it is likely to be an unqualified product. However, if you find that the cooking oil has a burnt, bitter or rancid taste, it means that the oil is gutter oil and should never be eaten or purchased.

4. Listen to the sound

In daily life, you can identify gutter oil by listening to the sound. Good quality cooking oil makes no sound when it burns after being ignited, while gutter oil contains a large amount of water, and there will be crackling sounds when it burns after being ignited. Such cooking oil is also suitable for purchase and consumption.