when to harvest corn

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when to harvest corn

Corn is typically ready to harvest when it reaches the "milk stage," which occurs about 20 days after the silks appear. At this stage, piercing a kernel releases a milky juice, indicating the kernels are tender and sweet. The silks on the ears should be brown and dry at the tips, and the corn kernels should be plump and firm. Most corn is harvested between August and October, depending on the variety and growing conditions. For field corn (used for grain), it is often harvested at a later stage when kernels harden and develop a dent, with moisture content around 17% or less being optimal for harvest. Sweet corn, intended for fresh eating, should be picked when kernels are still juicy and sweet before the sugars convert to starch and the corn becomes tough. Harvesting in cooler temperatures, like early morning or evening, helps preserve corn quality. Farmers also check for firmness and kernel development by gently squeezing ears and peeking at the tips under the husks.