The most important thing is to use firewood. Dig a small hole in the ground, just big enough to put sweet potatoes in. Then burn the firewood on it, just branches. When the branches are burned, there will be red charcoal. These red charcoal are gathered together to cover the sweet potato. Of course, the more charcoal, the better. Just simmer with charcoal. When the charcoal is about to go out, you can pull the sweet potato out. It will be absolutely sweet and delicious. Remember, corn stalks and other grass stalks will not cook the sweet potatoes for a while, so wait until you eat the hot sweet potatoes.
Sweet potato (English: sweet potato), scientific name: Ipomoea batatas (L.) Lam., also known as potato, red taro, sweet potato, sweet potato, sweet potato, sweet potato (northern), sweet potato (more (local dialect), sweet potato, white potato, golden potato, sweet potato, red potato, pillow potato, sweet potato, white taro, anise sweet potato, red sweet potato, yam (dialect), cute sweet potato.
Sweet potato is an annual herbaceous plant of the Convolvulaceae family. It is more than 2 meters long and lies flat on the ground. The leaves are usually wide oval, 4-13 cm long and 3-13 cm wide. The corolla is pink, White, lavender or purple, bell-shaped or funnel-shaped, 3-4 cm long, capsule oval or oblate, with false septa, divided into 4 chambers, with underground tuberous roots, spindle-shaped, khaki or purple-red outer skin .
Sweet potatoes are rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and are known as "longevity food". The sugar content reaches 15%-20%. It has anti-cancer, heart protection, prevention of emphysema, diabetes, weight loss and other effects. Li Shizhen's "Compendium of Materia Medica" of the Ming Dynasty recorded that "sweet potatoes can replenish deficiency, strengthen the spleen and appetite, and strengthen kidney yin", and also said that people living in the sea can live longer if they eat it. Traditional Chinese medicine regards sweet potatoes as good medicine.