Is it okay to eat an onion if there is white liquid when it is cut? What is the difference between red onions and yellow onions?

Onions are rich in nutrients and are one of the main vegetables grown in my country. The edible part is the underground hypertrophic bulb (i.e. onion head). Onions contain nutrients such as protein, carbohydrates, calcium, phosphorus, iron, vitamin A, vitamin B, niacin, vitamin C, and amino acids. It should be noted that when cutting onions, the volatile substances in onions will cause certain irritation to the eyes, resulting in tears. In this case, you can soak the kitchen knife in cold water for a while in advance, and then cut the onion without causing eye irritation. Many friends are curious about whether the white liquid after cutting onions can be eaten? Yes, because the white liquid is actually the juice of the onion stem.

Contents of this article

1. Why do we cut onions in water?

2. How to peel an onion

3. Can I eat the white liquid when I cut an onion?

4. The difference between red onions and yellow onions

5. Is onion acidic or alkaline?

Why do we cut onions in water?

This is to prevent the allinase released by onions from irritating the eyes. Because when onions are cut in water, the onion juice dissolves in the water and does not splash out, so it will not make people cry.

Onion is also known as bulb onion or round onion. Onion contains prostaglandin A, which can reduce peripheral vascular resistance and blood viscosity. It can be used to lower blood pressure, refresh the mind, relieve stress, and prevent colds. In addition, onion can remove oxygen free radicals in the body, enhance metabolism, resist aging, and prevent osteoporosis. It is a health food suitable for middle-aged and elderly people.

How to peel an onion

When peeling an onion, you should first cut off both ends, then peel off the onion skin, and finally wash the onion. When peeling an onion, its volatile substances will cause certain irritation to the eyes. It is recommended to soak the kitchen knife in cold water for a while before using it to cut onions to relieve the irritation to the eyes.

To peel an onion, you can first cut off both ends of the onion with a knife, and then you can easily peel off the onion skin. After peeling the onion skin, wash the onion again.

It should be noted that when cutting onions, the volatile substances in onions will cause certain irritation to the eyes, thereby causing tears. In this case, you can soak the kitchen knife in cold water for a while in advance, and then cutting onions will not cause irritation to the eyes.

In addition, you can also put the onion in the microwave first. This will not only make the onion skin easier to peel, but also prevent volatile substances from causing tears in your eyes when peeling.

Is it ok to eat the white liquid when an onion is cut?

The white liquid that comes out when an onion is cut is edible, because the white liquid is actually the juice of the onion stem. If the onion is cut and white liquid comes out, it proves that the onion is relatively fresh. Onions are rich in vitamins and trace elements. The quercetin and prostaglandin A contained in them have antioxidant, anti-inflammatory and bactericidal effects, but eating too much can easily cause internal heat.

When you cut an onion, you can eat the white liquid that comes out, because this white liquid is the juice of the onion stem, which proves that the onion is still fresh and full of moisture. However, when cutting onions, avoid getting the juice in your eyes, otherwise it may irritate your eyes and cause sneezing.

Onions are not only rich in vitamin C, folic acid, cellulose, and trace elements such as potassium, zinc, and selenium, but their juice also contains quercetin and prostaglandin A. These two special nutrients make onions have antioxidant effects and also have certain anti-inflammatory and bactericidal effects.

When eating onions, be sure to avoid eating them with honey, because honey will affect the body's absorption of onions and is not good for eye health. And the amount of onions consumed in a day should be controlled between 50g and 80g, otherwise eating too much onion may cause symptoms of getting angry.

Difference Between Red Onions and Yellow Onions

Red onions are spicier and are often used in stews, while yellow onions are less spicy and even sweet, and are often used to make cold dishes and curries. Yellow onions have more water and are larger than red onions. Most of my country's yellow onions are produced inland and are grown in many places in my country, while red onions are mainly produced in the northwest.

Red onions are relatively spicy, so they are often used in stews to add flavor to food. Yellow onions are mildly spicy, and you can even taste their sweetness if you taste them carefully, so they are often used to make cold dishes or curry dishes.

Yellow onions have more water and are larger in size, so their shelf life is relatively short. It is recommended to eat them as soon as possible to avoid losing their nutritional value. Red onions have less water and are smaller in size, so if you can store them in a dry place, their shelf life can be extended.

Most of my country's yellow onions are grown inland, and are planted in North China, Northwest my country, and Northeast China, covering a wide area. Most of the red onions are planted in the Northwest China, especially the red onions in Gansu Province, which are famous for their good quality and crisp taste.

Are onions acidic or alkaline?

Onions are alkaline foods. Onions contain metal elements such as calcium, phosphorus, iron, sodium, and magnesium. The oxides in the human body are alkaline. The acidity and alkalinity of food refers to whether the inorganic salts in the food are acidic or alkaline. Onions are native to Central Asia or West Asia. They are tender, juicy, and lightly spicy.