Tips: Look for pomegranate seeds in the refrigerated section of the produce department at your supermarket. Fresh pomegranate seeds, also known as arils, can be refrigerated in airtight container up to 2 weeks. Or for longer storage, spread pomegranate seeds into single layer on waxed paper-covered rimmed baking sheet. Freeze 2 hours. Transfer to freezer-weight resealable plastic bag; freeze up to 3 months before using as desired.