The fresh-keeping methods of sweet potatoes can be preserved for a long time in these three ways.

Suitable for growers with large planting area and large storage capacity. The constant temperature warehouse can manually adjust the temperature and humidity in the warehouse, keeping the temperature at 10~ 15 degrees and the humidity at about 90%, which is the best environment for storing sweet potatoes.

2. cellar preservation.

The optimum storage temperature of sweet potato is about 65438 05℃. If the temperature is too high, sweet potato will germinate easily, and if the temperature is too low, it will easily cause freezing injury and reduce the quality. Therefore, the temperature of rural cellar is just around 10~ 15 degrees, which is very suitable for storing sweet potatoes. After harvesting sweet potatoes, farmers should wrap them in chaff or corn husk for 3-5 days. A layer of chaff, a layer of sweet potato, and the same layer of sweet potato should be separated by chaff shells. If possible, it is best to bring some soil, and then code them in turn. Or lay a layer of dry fine sand under the cellar, and stack the sweet potatoes in layers in turn, being careful not to have too many layers, leaving room for ventilation.

3, carton preservation.

In the paper box or turnover box, dry the sweet potato, wrap it in paper, and then put it in the box in turn. It is no problem to store for half a year. Note that it is a sweet potato without skin trauma.