Process all ingredients in blender until finely ground, about 30 seconds, scraping down sides of blender jar as needed.
Using fine-mesh strainer, sift mixture into large bowl; discard any seeds and remaining fruit pieces.
Transfer to storage container with tight-fitting lid. (Dry mix can be stored in airtight container at room temperature for up to 2 weeks. Break up any clumps before using.)
To drink, combine 8 ounces water and 1 rounded tablespoon dry mix in 2- to 4-cup beverage container with tight-fitting lid.
Seal container and shake vigorously until refresher mix is fully combined (fruit powder will not dissolve), about 30 seconds. Serve.
