How to choose yams, how to choose yams

First, let's look at the epidermis. The normal yam is brown in appearance, and there are black laughs and roots scattered on it. If the color of the outer skin is black or there are patches, it is usually the case that the inside has deteriorated, so do not choose this.

Second, a yam is generally very long, and we can ask the boss to cut it off when we buy it. If it is cut off and is milky white and there is a viscous liquid, it means that the yam is relatively fresh and of acceptable quality. It's red inside, and there's even a hard heart, which is obviously not good.

Thirdly, we can also break the skin of the yam a little bit and smell the smell. Yams without added sulfur have a fresh smell, and if you smell a little pungent and uncomfortable, they are smoked, so don't buy them.

Fourth, because yam also contains more water, we can feel its weight with our hands when picking. The heavier the yam of the same size, the more water it contains, and the more delicious it tastes. On the contrary, it is left for too long, which causes its moisture to slowly evaporate.

When buying yams, you have to look at the appearance of the yams, which are not rotten, a little flat and curved, which proves to be a better yam.

You take two yams of about the same size to see which one is heavier, and the heavier one must be fresher.

The yam has a lot of hair on the skin, and it has a good taste.

The yam with a smooth surface is relatively crispy and suitable for stir-frying. The appearance is not smooth, there are a lot of pockmarked yams, and the taste is full, suitable for steaming and burning.

Choose yams with straight stems and good taste. There are slightly prominent yams, and the taste is not good.

When picking, break a little of the skin of the yam, the flesh is white and the juice is sticky, that is, fresh. The meat is red and juice like water, so it has been frozen.

You can look at the beard hair of the yam, the more hair, the better the taste, and the more nutritious it is.

Nutritional value of yam:

1. Amylase: Yam not only contains a lot of plant protein, but also contains rich natural nutrients such as yam amylase and polyphenol oxidase, which can directly act on human fatigue, promote spleen and stomach digestion, relieve spleen and stomach weakness, and have a good preventive effect on human spleen and stomach deficiency and cold, spleen and stomach disharmony, as well as lack of food and fatigue and abdominal distension.

2. Mucus protein: In addition to containing amylase and plant protein, yam contains a variety of minerals and vitamins that are beneficial to the human body, in addition, mucus protein is also the most important existence in yam, which can not only regulate blood sugar and prevent blood sugar elevation, but also remove cholesterol and fat on the blood vessel wall, prevent vascular aging, improve body immunity, and reduce the occurrence of cancer.

How to choose yam correctly

In our daily life, many people especially like to eat yam, and yam is also a relatively nutritious medicinal material. Eating it together can have a good effect and effect. Let's take a look at how to choose yams correctly, I hope it will help you.

The right way to choose yams

1.Look at the appearance. **The smoother is the crispy yam, which is suitable for stir-frying. If you want to use it for stewing soup or making desserts, you can choose some noodles and yams, which will be sweet, glutinous and plump. The main characteristic of the yam is that there are a lot of pockmarks on the body;

2.Look at the appearance. Slightly flattened, with a certain curve on the head, the color is brownish-yellow, or the stem is straight, the texture is relatively firm, if the yam has protruding pimples, the taste may be hard;

3.Hold it with your hands. You can hold the yam for a while, depending on the weather.

The warmth can be shorter, anyway, when you hold and loosen it, the fresh yam skin will feel warm, and the unfresh yam palms will sweat. If the epidermis oozes tiny droplets, it means that the yam has been frozen. The nutritional value will be reduced, and the taste is not very good;

4.Tear the skin. When buying, you can break a little skin, or look at the yam cut surface, if the meat is white, the juice is viscous, it means that it is a fresh yam, after the frozen yam is opened, the flesh inside is red like a trembling bush digging rust.

Will eating too much yam get hot?

If you eat too much yam, you will get angry.

From a nutritional point of view, yam is a high-starch ingredient. This ingredient is digested with a lot of water. If you eat too much, your stool will be dry, and when steamed, you will also have a dry mouth and tongue, and an uncomfortable throat.

If the yam is eaten and the dosage is controlled, there will be no symptoms of fire.

When choosing yams, be sure to choose those with smooth surfaces and no signs of rotting, which will taste more delicious. In addition, when choosing between two yams of the same size, it is necessary to choose a heavier one, which means that the moisture is large and relatively fresh. In addition, it is best to choose a skin with a lot of hair, which is also very good.

Yam availability time.

Yam can be divided into flat yam and round yam, which are mainly distributed in Jiangxi, Hunan, Sichuan, Guizhou, Zhejiang, Guangdong, Guangxi and Fujian. Yuan yam is mainly distributed in Guangdong, Fujian, Taiwan, Hainan and Zhejiang in China.

Yams usually mature in October to November in the autumn of each year, and then harvest and market, if it is planted in greenhouses, it can usually be harvested in June, the market of yam depends on the variety and planting area, the current average ** is about 7-15 yuan kg.

Yam selection tips.

1. Look at the appearance of this eye:When choosing yams, be sure to choose those yams that have a smooth surface and no signs of rotting, good yams not only look good in appearance, but also taste more delicious.

2. Weigh the weight:Take out two yams of the same size and length and put them in your hands, and think that the heavy one is better, because it has a lot of moisture, and the light one must have been put for too long and the water loss is serious.

3. Look at the epidermis:When choosing a yam, there must be a lot of hairs on the outer skin, and the taste of this yam is also very good, and of course the nutrition is higher.

How to choose fresh yams.

Hold the Yamamori Yamike with your hand for a few minutes, and after letting go of the hand, if it is a fresh yam, the epidermis must have a warm feeling, and if the epidermis oozes fine droplets, it means that it is a frozen yam, which is not a fresh yam.

You can also observe the color of the epidermis, if the color is earthy brown, then it can indicate that it is fresh, if the epidermis is dark and black, it means that the yam is not fresh.

Efficacy and function of yam.

Characteristics of yam:Yam has two textures, one is soft and glutinous, this yam has its own sweetness, and it tastes soft and a little rustling. The other is more crispy, such yam is crispy and delicious to eat, and there is a slippery feeling.

Efficacy and function of yam. Yam has the effect of inducing interferon and enhancing immune function, and has a good effect on perennial diarrhea, diarrhea and poor appetite.

1. Look at the epidermis: high-quality yams, the surface is not damaged, or some black spots and meniscus laughs, and the overall color looks relatively uniform. If you see a yam that is strangely shaped, and the skin is damaged, there are black spots, etc., the quality is not good.

2. Look at the yam whisker: the more yam whisker-like substances are longer and longer, the better the taste and the higher the nutritional value. Conversely, the fewer and shorter the roots, the lower the quality.

3. Look at the pulp: The color of the flesh of a good quality yam is pure white and very viscous. If the flesh color is yellow or red, or even blackened, it means that the quality is poor.

4. Weighing: Fresh yam has the highest moisture and nutrition, and has not been lost, so it is heavier. When choosing a yam, you can choose two yams that look similar in thickness and length, and the heavier one, the better the quality.

1. Look at the hair of the yam. When buying yams, you should pay attention to the hair on the surface of the yam, the hair on the surface of the yam can actually reflect a lot of problems, which directly determines whether the nutrition of the yam is relatively high, you can look at the density and length of the hair when you observe, the more hair on the yam, the higher the nutritional value of the yam, the better the taste.

2. Feel the weight of the yam. When buying yams, you can take the yam of similar size in your hand and weigh it to see which yam weighs heavier, you should choose a heavier yam, the reason why you want to choose a slightly heavier yam, is because such a yam is fresh, and it also contains a lot of water in the yam, it has a very rich nutritional value, and there is no loss of nutrients. It is very likely that it has been left for a long time.

3. Look at the appearance of the yam, when buying the yam, you should also carefully observe the appearance of the yam, if the appearance of the yam is smooth and delicate, it means that such a yam is better, and the taste is better. Everyone chooses these delicate yams, which are particularly tender to eat. You can also touch the appearance of the yam with your hands, it is hard to the touch, and there is no damage on the surface, such a yam has high nutritional value and good taste, and it is a yam worth buying.