In Season: Most supermarkets carry grapes year-round, but peak growing season in North America is July to December.What to Look For: Grapes should be plump, with smooth unbroken skins, and be firmly attached to the stems. The green ones are at their sweetest when they have a pale-yellow hue. Often, grapes are covered with a whitish "bloom," which is a natural protection against loss of moisture and spoilage.How to Store: Discard damaged grapes, place bunch in a plastic bag, and refrigerate up to three days. To avoid destroying the bloom, rinse just before using.
Protein-rich tofu gives this drink a thick and creamy texture, and frozen blueberries, cherries, and grapes deliver deep flavor and additional antioxidants. Rooibos tea, grown in South Africa, adds an herbaceous sweetness to this fruit smoothie without the caffeine found in other teas.