Brett happens

Champagne, Extra Brut, Blanc de blancs, Les vignes de Montguex, Jacques Lassaigne ($59.00, 12061311)
Planted to Chardonnay and a little Pinot Noir, the approximately five-hectare estate is located in Montgeux, a chalky hill in the southernmost part of the appellation. A small quantity of grapes is also purchased. All the grapes are organically farmed and the wine-making is as natural as possible. Disgorgement is performed monthly. This cuvée is always a blend of 100% Chardonnay wines from two successive vintages and several parcels. Manually harvested. Sulphur is added only as the grapes come into the winery. Each parcel is vinified separately. 15% is matured in cask. Riddling is mechanical, disgorging manual. No or minimal dosage. Unfiltered and unfined. 12% ABV. Quebec agent: oenopole.
Pale electrum with a fine, streaming bead. Pleasing nose of lemon, apple, minerals, yeast and a whiff of yogurt. Dry, dimensional and appealingly austere, with clean fruit and chalky minerals in equipoise. The tingly effervescence provides lift, the crisp acidity cut. Finishes on a long, savoury, faintly saline note. Such a tonic wine. In its style and at its price point, you won’t find better at the SAQ or maybe anywhere. (Buy again? Yes.)

Emmanuel Lassaigne, Jacques’s son and the current winemaker, describes this as an aperitif wine, a role it plays supremely well. That said, it proved a delightful palate cleanser after the meal. It also makes a killer accompaniment for sushi.