Sweet potatoes are a nutritious and unique food, but they are prone to rot and deterioration during preservation. In order to maintain the freshness and taste of sweet potatoes, some effective preservation methods and techniques need to be employed.
First of all, the cryogenic storage method can be employed. Place the sweet potatoes in a cool and ventilated place, avoid direct sunlight and high temperatures, and keep the temperature around 10-15, which can delay the respiration and metabolism of the sweet potatoes and prolong the freshness time. If long-term storage is required, sweet potatoes can be stored in the cellar or cold storage, but care should be taken to prevent moisture and frost damage.
Secondly, it can be stored in the sun. Wash the sweet potatoes and cut them into slices or strips, dry them until they are dry, and store them. This method removes excess water from sweet potatoes, inhibits the growth of microorganisms, and extends shelf life. However, care should be taken not to contaminate and infest sweet potatoes during the drying process.
Alternatively, vacuum storage can be used. Place the sweet potatoes in a vacuum bag, remove the air, and store them tightly sealed. This method reduces oxygen levels, inhibits the growth of microorganisms, and extends shelf life. However, it is necessary to pay attention to the quality and tightness of the vacuum bag to avoid air leakage and moisture.
Finally, there are a few caveats to be aware of. First of all, it is necessary to choose fresh, wound-free, pest-free sweet potatoes for storage. Secondly, the soil and dirt on the surface of the sweet potatoes should be cleaned before storage, and then stored after drying. In addition, it is necessary to regularly inspect the stored sweet potatoes and deal with wounds, deterioration and other problems in a timely manner. Finally, avoid frequent handling and squeezing of stored sweet potatoes to avoid mechanical damage and spoilage.
In short, the use of appropriate preservation methods and technologies can effectively extend the shelf life and taste of sweet potatoes, and at the same time, pay attention to some precautions to avoid problems in the storage process.