Brett happens

Crémant d’Alsace 2010, Zéro Dosage, Domaine Barmès Buecher ($23.10, 10985851)
Biodynamically farmed Pinot Auxerrois (42%), Pinot Gris (36%), Chardonnay (13%) and Pinot blanc (8%). No dosage. 13% ABV.
Abundant foam dissipates, leaving tiny bubbles in a few twisting, fast-rising streams. Subtle nose: brioche dough, lemon, hints of spice and white flowers. Softly effervescent on the palate, dry and complex, even layered. Here the fruit – lemon peel and pith, candied citron, sour green apple – is wrapped around a core of quartz and chalk. There’s just enough extract to balance the tart acidity. A yeasty note marks the long finish. The quaffability quotient* is off the charts – you can’t resist going back for another sip. The best vintage yet? (Buy again? In multiples.)

*My translation of coefficient de torchabilité, which was François Barmès’s favourite metric, or so it seemed at the MWG tasting he led a few months before his untimely death.