To preserve and store: Place whole head in a ziplock bag and store in the refrigerator for up to 4 days. You can also preserve the whole cloves in oil in a jar with herbs, chili pepper flakes, and lemon zest. The cloves will last up to 20 days this way. Finally, the roasted garlic cloves can be preserved in the freezer in a ziplock bag for up to 4 months.