It’s best to cook corn as soon as possible after it is picked or purchased. This is because, after being picked, the corn’s natural sugars gradually convert to starch, which, in turn, lessens the corn’s natural sweetness. Because corn is highly perishable, it should be refrigerated immediately after you buy it. Fresh corn can also be purchased canned or frozen.
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The information presented in the Food Guide is for informational purposes only and was created by a team of US–registered dietitians and food experts. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements, making dietary changes, or before making any changes in prescribed medications. Information expires December 2025.