1988 was a great vintage for Kabinetts, Spatleses, and even Ausleses; but late October rains made BAs and TBAs impossible for most producers-- though Prum was able to make one BA this vintage. Click here for a great overview of the vintage.
Bernkasteler Badstube is 50 hectares of rocky slate. The winery, founded in 1911 by JJ Prum, is now managed by father-daughter team Manfred and Katharina, and they've been using spontaneous ferments for decades.