Look for kale in the cooled produce section of your local grocery store or health food market. It is recommended that you buy kale that is grown organically, as kale has become one of the newest members of the “Dirty Dozen,” a list of the most contaminated foods. The leaves should be firm and deeply colored with stems that are moist and strong. Make sure that the leaves are not browning or yellowing, and they are free from small holes. If the raw leaves show signs of wilting, it is an indication that the greens are old and they were not properly stored…avoid these as they won’t taste good and can introduce unwanted toxins into your body. To store, keep kale refrigerated in an airtight bag or glass container.
It can typically be stored for up to 5 days, but you may notice the flavor increase in bitterness with longer storage. Only wash the kale when you are ready to use it as washing before storage will promote spoilage.