1, indoor fresh storage method. Sweet potatoes are cold. If the temperature is too low, it may be cold, resulting in hard, immature and unbroken nuclei. If the temperature is higher than 18 degrees Celsius for a long time, it will germinate again. Therefore, it is best to keep the indoor temperature around 15 degrees Celsius. In addition, we should pay attention to avoid high and low temperatures. Sweet potato is wet and cold, which can easily cause pathogen damage and lead to rot. So it's best to store it in a breathable joinery box. If there is no wooden case for packaging, the place where sweet potatoes are stacked and the wall should be padded with wooden boards, and some things should be covered on the potato pile to prevent them from getting wet.

2. In warm broad daylight, it is necessary to open the dialog box for air exchange moderately to maintain indoor air quality, but to avoid wind blowing in. In addition, some sweet potatoes sold in the market will be scratched and bruised after transportation, and pathogenic bacteria are very easy to invade, leading to rot. Therefore, it is best to put the bought sweet potato in the sun for several hours to reduce the moisture in the wound and promote the healing, and take it with care to prevent injury.

3. Cook and dry. Storage method: After the sweet potato is cooked, cut each piece into three or four pieces, and put it indoors or in a sunny, dry and naturally ventilated place to dry. After the sweet potato is cooked, the water volatilizes slowly and it takes a long time to dry thoroughly. After drying, store it in a dry place indoors. Wash, soak and steam before eating.