Brett happens

Alsace 2011, Schlossberg Grand cru, Riesling, Domaine Albert Mann ($48.00, 11967751)
100% Riesling from biodyanmically farmed 40-year-old vines. Manually harvested. Slow pressed (pneumatic or horizontal press). Fermentation and maturation take several months, during which time the wine is in contact with its lees. Sulphur in small amounts is the only non-grape product added. 13.5% ABV.
Closed but promising nose: lemon-lime, coriander seed, minerals, a flowery meadow. Smooth and round, with noticeable residual sugar on the attack, though the wine dries as it goes along. The fruit is rich, layered and impressively dense, the acidity gleaming. Chewing reveals an underlying tautness and granitic minerality that lasts through the long finish. It may be a baby but it’s already a thoroughbred, as a decade in the cellar will surely make clear. (Buy again? Yes.)

Alsace 2011, Riesling, Cuvée Albert, Domaine Albert Mann ($27.30, 11449786)
100% Riesling from biodynamically farmed 20-year-old vines in the Rosenberg (Wettolsheim) et Altenbourg (Kientzheim) vineyards. Slow pressed. Fermented in stainless steel and on the lees for several months. Screwcap. 13% ABV.
Reductive nose (probably due to the wine not being carafed but simply opened and poured). After it blows off, a classic Riesling nose dominated by lemon-lime and kerosene. Light and smooth in the mouth. Slightly less sweet and considerably less dense, complex and dimensional than the Schlossberg. Clean citrus and mineral flavours, ripe acidity, impeccable balance and good length add up to a wine that’s easy to drink now but has the potential to age and improve for another four or five years. My only hesitation is the price, which seems high when, if you’re lucky, you can get a private import Schueller Riesling for $4 less. (Buy again? Maybe.)