How to Freeze Kale: Preserve Nutrients for Longer
– Freezing kale without blanching may cause bitterness due to ripening enzymes in the leaves
– Unblanched kale can be used in stews and soups where bitterness can be overpowered
– Blanching kale leaves for 2.5 minutes and stems for 3 minutes is recommended for longer freezing time (8-12 months)
– After blanching, place leaves and stems in ice water for the same amount of time
– Dry blanched kale leaves by placing them on a towel, rolling it up, and squeezing out excess water
– Quick-freeze small clumps of kale individually on a cookie sheet before transferring to freezer bags
– Remove air from the bags before sealing
– Alternatively, place blanched and dried kale into individual packages prior to freezing
– Choose the right size freezer bag for serving-size portions and remove as much air as possible
– Frozen kale can be used in smoothies, sauteed with seasoned rice vinegar or garlic, added to quiches, stews, and soups, or used to make pesto.