Surely you've had one too many supersweet sangrias whose fruit chunks overpower the (usually mediocre) wine. This version couldn't be more of a contrast, with a refreshing mintiness and subtly aromatic fruit that still allow the crispness of the white wine to come through.
Cooks' notes:
•Vitamin C (ascorbic acid) is also available in powdered form at pharmacies and natural foods stores. It will keep the sangria's color bright.
•Sangria can be chilled up to 1 day.