Peel husks and silks from corn and trim blemishes. Boil corn 5 minutes, then quickly dip in cold water. Cut kernels from cobs.
Measure 2 1/2 quarts cut corn. Combine corn with onions, green and red bell peppers, celery, white vinegar, water, sugar, mustard seeds, salt, celery seeds and turmeric in large kettle.
Simmer, uncovered, 20 minutes. Pack into hot sterilized jars, leaving 1/4-inch head space. Make sure vinegar solution covers vegetables. Adjust lids and process in boiling water bath 15 minutes.Servings: 6 to 7 pints