Salt (optional)
Water
Husk corn; remove silk; wash. Cut kernels from cob, do not scrape cob. Pack corn loosely into hot jars, leaving 1 inch headspace. Do not shake or press down. Add 1/2 teaspoon salt per pint, 1 teaspoon per quart, if desired. Ladle boiling water over corn, leaving 1 inch headspace. Remove air bubbles, adjust caps. Process pints 55 minutes, quarts 1 hour and 25 minutes at 10 pounds pressure in a steam pressure canner.
Note: sugar content in young ears and sweet varieties of corn may cause browning.