Avoid sweet corn
with dried or dark colored silk or discolored husks. Buying sweet corn from a road side stand may result in corn that has lost much of its sweetness from being exposed to high temperatures. The high temperatures will rapidly convert the corn’s sugar to starch, causing it to lose some of its sweet flavor. If purchasing from a road side stand, be sure to buy the sweet corn early in the morning and ask if it was picked fresh that morning.
To store corn, leave the corn in the husk and refrigerate as soon as possible. If corn has been husked, place it in a plastic bag and store in the refrigerator. It is best to eat it as soon as possible.