From the appearance of yams, we can know that we cannot buy yams with abnormal spots on the skin. Instead, buy yams with smooth skin. Moreover, you should buy yams of the same variety that have more hair and higher nutritional value. Next, let me show you whether yams will produce water?

Will yam produce water?

No, if water comes out, it means it has been frozen, so don’t buy it. Yams are afraid of cold and heat. When buying yams in winter, you can hold them with your hands for about 10 minutes. If the yams sweat, they have been frozen. When you break it open, you will find that the mucus in the cross-section of the frozen yam will turn into water, with a hard core and red flesh color. The quality is poor and the taste is extremely bad. In winter, hold a yam in your hand for ten minutes. It is better if the yam does not sweat, which means it has not been frozen.

How to choose yam

1. From the appearance, the crispy yam has a smoother skin, which is suitable for frying; if you are making soup or making desserts, it is recommended to choose noodle yam. The taste will be sweet, glutinous and plump, and the characteristics of noodle yam are many pockmarks, many whiskers and smooth texture.

2. Look at the appearance. It is a good yam if it is slightly flat, with a slight twist on the head, and is brown in color; or if the stem is vertical and solid in texture; or if it is in the shape of a small hand. If there are raised bumps, the taste may be slightly harder.

3. Then hold it with your hands. Catch yam for a period of time. The length of time may depend on the weather at that time. If it is warm, it may be shorter. On the contrary, the clinging time may be longer. After being grasped and loosened, the skin of fresh yam will feel warm; the skin of stale yam will "sweat" and small water droplets will ooze out from the skin. This is yam that has been frozen. Once yam is frozen, the content of polysaccharides and free amino acids in the mucus will be damaged, the nutritional value will be reduced and the taste will be poor.

4. When buying, you can break off a little of the skin, or look at the cut surface of the yam. The meat is white and the juice is sticky. It is fresh yam. After the frozen yam is cut, the inside of the yam will be as red as rust. , and has a hard heart, and juice like water.

5. Weigh the yams. For yams of the same size, the heavier ones are better.

6. Look at the beard and hair. For yams of the same variety, the more beard and hair the better. Yams with more beards taste better, contain more yam polysaccharides, and have better nutrition.

7. Finally, look at the cross section. The meat of the yam should be snow white, which means it is fresh. If it is yellow and looks like rust, do not buy it.

How to choose yam

1. First, weigh the weight. For yams of the same size, heavier ones are better. Secondly, look at the beard. For the same variety of yams, the more beard the better. Yams with more beards taste better, contain more yam polysaccharides, and have better nutrition. Finally, look at the cross-section. The cross-section of the yam should be snow-white, which means it is fresh. If it is yellow and looks like rust, do not buy it.

2. You must not buy yams with abnormal spots on the surface, because they may have been infected with diseases. Also note that the cross section of the yam should contain mucus and the outer skin should not be damaged. Yams are afraid of cold and heat. When buying yams in winter, you can hold them with your hands for about 10 minutes. If the yams sweat, they have been frozen. When broken open, the mucus in the cross-section of frozen yam will turn into water, with a hard core and red flesh color, indicating poor quality.

3. The yam used for steaming and cooking should be hairy. Use clean, crisp, hairless yams for cooking.

Is it better to have big yams or small ones?

The quality of yam mainly depends on the variety. The nutritional value and variety vary greatly, so don’t look at the appearance. Yams are a very common food in the daily diet. Yams are rich in a variety of proteins and starches, which can supplement the nutrients and vitamins needed by the body. In daily life, yams are divided into sizes or thicknesses. When choosing yams Compared with small yams, big yam has better taste and nutrition.