How to choose purple sweet potato

Purple sweet potato is a kind of coarse grain. Many people like to eat it because it contains a lot of anthocyanins, which can delay aging, promote gastric motility, and relieve constipation symptoms. Some young people want to buy purple sweet potatoes but find that they don’t know how to pick good ones. In fact, the method of choosing purple sweet potatoes is similar to that of choosing sweet potatoes. Here I will introduce to you how to choose purple sweet potatoes~

1. How to choose purple sweet potato

1. Don’t pick the round ones, try to pick the long ones, and give priority to the spindle-shaped purple sweet potatoes, as they taste better.

2. The surface of the purple sweet potato should look smooth. Do not choose those with black spots on the skin, as they will have a strange, prickly smell similar to detergent when cooked. Remember, rotten purple sweet potatoes are poisonous and should not be picked.

3. The purple sweet potato should not smell moldy. Moldy purple sweet potatoes contain ketotoxins and are not edible.

4. Although sprouted purple sweet potatoes are not as poisonous as potatoes, they taste worse and are not recommended for purchase.

5. Purple sweet potato varieties are mainly divided into two categories: edible type and processing type. Processed purple sweet potatoes are not as sweet as edible ones. Because the processed type is usually used in factories to produce purple sweet potato by-products such as potato chips. In the local market, the price of edible purple sweet potatoes is about 3-5 yuan per catty, while the price of processed purple sweet potatoes is about 1 yuan, so don’t be greedy for small profits when buying purple sweet potatoes!

2. Precautions for eating purple sweet potatoes

1. Purple sweet potatoes contain oxidase, which can easily produce gas. Eating too much can cause bloating, hiccups, and farts.

2. Purple sweet potatoes have a high sugar content. Eating too much can stimulate the secretion of gastric acid and cause heartburn.

3. Traditional Chinese medicine believes that purple sweet potatoes are sweet, neutral in nature, and enter the spleen, stomach, and lung meridians. People with dampness blocking the spleen and stomach, qi stagnation and food accumulation should eat it with caution.

4. Avoid eating purple sweet potatoes alone. Eat them with foods rich in high-quality protein for a more comprehensive nutritional experience.

5. Avoid eating raw. Purple sweet potatoes must be cooked thoroughly before eating, because the starch granules are difficult to digest without being destroyed by high temperature.

6. Avoid eating purple sweet potatoes with tomatoes. Tomatoes contain a large amount of acidic substances, which can form indigestible substances with purple sweet potatoes in the stomach, which can easily cause abdominal pain, diarrhea and indigestion.

7. Purple sweet potatoes should not be eaten with persimmons, as it will not only affect the absorption of nutrients and form stones, but also easily cause gastric bleeding.

8. Purple sweet potatoes should not be eaten with white wine, crabs, and bananas. This is because purple sweet potatoes are low in calories and can easily cause abdominal pain and diarrhea.

9. People who are allergic to purple sweet potatoes should not eat it. Purple sweet potatoes may also become allergens. If you are allergic to purple sweet potatoes, eating them may cause allergic symptoms such as skin redness and swelling, frequent diarrhea, indigestion, headache, sore throat, asthma, etc. Therefore, such people should also avoid eating purple sweet potatoes.