Pick the best of the bin. Look for smooth, dry, clean and plump skin. Find one with deep orange color. In your hand it should feel heavy. Never refrigerate as that can affect the flavor.
Store in a dark, well ventilated place at 55 - 60 F. Only rinse just before use. Only refrigerate after cooking.
One sweet potato will give you a day's suppply of potassium and vitamin A. They are a good source of fiber, vitamin B6, and vitamin C., and contain almost no fat or sodium.
Louisiana is one of the top producers of sweet potatoes in the country.