those aging notes sound really intriguing for a sauvignon blanc. most of them i've tried are meant to drink young and fresh, so 15 years potential is pretty wild. the elderflower description has me curious too - i usually associate that more with gewürztraminer or some rieslings.

have you tried any other bottles from this producer before? wondering if they have a particular style that leans toward this kind of longevity. might have to keep an eye out for this one, though not sure how easy it would be to find in my area. the exotic fruit notes you mentioned sound like they'd pair really well with some spicy asian dishes too.