Add the freeze dried strawberries, sugar, 2 cups filtered water, the green coffee bean powder, and the Acai powder to a saucepan and bring to a boil.
Simmer for ten minutes to create a syrup. (note: The sugar will dissolve while the green bean coffee powder and Acai powder will not)
Pour the strawberry mixture into a fine mesh strainer, capturing the syrup in a wide lipped cup or bowl. (optional: you can get extra liquid out of the berries by gently pushing the berries into the strainer with the back of a spoon)
Allow the syrup to cool, 30-45 minutes. You should have slightly over two cups of the syrup.
To a 2-quart pitcher, add the strawberry syrup** (see note), 3 cups of cold filtered water, and white grape juice. Store in the fridge until ready to drink.
When serving, pour over ice and top with fresh or freeze dried strawberries. Serve immediately.
To be Starbucks authentic when serving, add some of the Strawberry Acai Refresher and some ice to a cocktail shaker and vigorously shake before pouring into the serving glass.
* I prefer substituting filtered water for the grape juice as the juice makes the drink very sweet.
** You can adjust the strawberry syrup depending on how strong or weak you want the drink to be.
DIY–Starbucks Strawberry Acai Refresher recipe https://beautyandthebeets.com/strawberry-acai-refresher/