■ Refrigerate kale in an open or perforated plastic bag for 3-5 days. Flavor becomes stronger and more bitter as kale is stored.
■ Wash kale just before using. Storing it wet can speed spoilage. • Fill a large bowl with cool water and swish loose leaves around.
■ For best quality, kale is blanched (cooked briefly) before freezing. Use within 1 year.