Why is it important to seal a potato in a plastic bag?

Sealing a potato in a plastic bag helps retain moisture and prevents it from drying out, which can lead to spoilage. It also helps protect the potato from exposure to air, reducing the risk of oxidation and the development of harmful bacteria. Additionally, the bag can create a controlled environment that slows down the sprouting process, extending the potato's shelf life. However, it's crucial to ensure proper ventilation to prevent excess moisture buildup, which can cause rot.