Test your crop by puncturing a kernel or two. If the juice runs milky rather than clear, the corn is ready for picking. (The time from planting will vary depending on the variety of the corn, your climate and this summer's weather, but start checking 18 to 21 days after you see the first silks.)
Snap each ear from its stalk with a sharp, downward twist. Leave the stalk in place; it may produce another, smaller ear.
Pick only as much as you plan to eat immediately.
Rush to the kitchen, quickly remove the husks and plunge the ears into boiling water.