Harvest the corn cobs after the husks turn dry and brown. Bend the ear down toward the stalk, breaking it free with a twisting motion.
Peel back the husks from the corn ears. Cut the husks off at the base or leave them attached for ornamental purposes.
Spread the ears of corn in a single layer on a large screen. Set the screen up on bricks or sawhorses so air can circulate freely around the corn.
Dry the corn in a warm, well-ventilated area for seven days. Turn the cobs daily so all sides dry evenly.
Press your fingernail into the corn kernels. Fully dried corn is hard and won't dent. Dry for an additional three to five days if your nail leaves an imprint in the kernel.