Pomegranates should be kept in a cool, dry, well-ventilated place, out of direct sunlight. Whole fruit can be refrigerated and will keep as long as 2 months. Fresh seeds or juice will keep in the refrigerator for up to 5 days. Pomegranate arils can be frozen for later use. The juice can be frozen or canned, however freezing is recommended as it maintains its flavor and color better.
To freeze arils (seeds):
Spread the arils, single layer, on a baking sheet lined with wax paper. Put them in the freezer for no more than 2 hours, then transfer to a moisture-proof freezer bag or container for storage. Return to the freezer and use within one year.
To freeze fresh juice:
Fill freezer containers with fresh juice, leaving ½-inch of headspace. Label with the date and store in the freezer in an upright position until juice is frozen. Best if used within one year.