Yuan Yuan came to Su Tang with a white coat that had been dried“ Tangtang, I''ve washed your clothes! What''s in your hand? How fragrant Su Tang took the white coat and handed the chestnut to Yuan Yuan“ This is chestnut. It''s a delicious food. I found it in the forest. Try it Sweet soft waxy chestnut instantly conquered the round taste buds. Yuan Yuan couldn''t help but stare big eyes, "delicious! It''s delicious! Tangtang, you are so wonderful! Why haven''t we found such delicious fruit before? " Su Tang covered her mouth and snickered, "Cain said it''s thorn fruit, but in our tribe, it''s called chestnut!" Yuanyuan was shocked once“ what! It''s a thorn fruit“ There used to be a small beast in our tribe who was hit in the head by thorn fruit and left a lot of blood. Because there was no doctor in our tribe, he soon went to see the beast God... "" since then, we have been far away from thorn fruit, afraid that there will be other females or small animals injured... "Yuanyuan is very lost, because the unfortunate little beast she said is her younger brother. Su Tang patted Yuan Yuan''s shoulder and said, "the thorn bag outside the chestnut is really dangerous, but after the thorn bag turns dark brown, it won''t be so hard! It still hurts to be knocked down, but it doesn''t bleed. "“ And chestnuts can be stored for a long time, taste good, but also very hungry, if you are afraid of injury, do not let small animals close to it Yuanyuan nodded absently. Cain, who was listening, suddenly asked, "Sue, do you think thorn fruit can be stored for a long time?" Su Tang thought about it and replied, "well, there are many ways to preserve chestnuts. Here you can use sand storage or air drying!"“ Sand storage method is to find a suitable place and bury chestnuts in the sand; The air drying method is to dry the freshly picked chestnuts and store them in a dry and ventilated place after removing the moisture Cain''s eyes were tinged with excitement, and he asked, "how long will it last? Can these two methods preserve all the fruits? "