TIP OF THE DAY: Blue & Purple Potatoes

The All Blue variety of blue potatoes. Potatoes can be blue or purple, depending on the soil in which they are grown. Photo courtesy Burpee.com.   Naturally blue and purple foods are relatively rare. Blue Foods. In the blue group are blackberries, blueberries, blue cheese, blue corn, Concord grapes, pale blue oyster mushrooms and edible…
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