What is the ancestral method (méthode ancestrale)?

Before Champagne, before Dom Pérignon, before riddling desks and disgorgement — there was the ancestral method. And it's beautifully simple.

Monks at the Abbey of Saint-Hilaire near Limoux, in southern France, documented sparkling wine in 1531 — over 150 years before Champagne's method was codified. They noticed that wine bottled before winter finished fermenting in spring when temperatures rose, trapping CO₂ in the bottle.

The method hasn't changed much since. Fermenting grape juice goes into a bottle before all the sugar has been converted to alcohol. The remaining sugar ferments inside the sealed bottle, creating natural carbonation. No added yeast. No added sugar. No riddling. No disgorgement (usually). Just one continuous fermentation, started in tank and finished in glass.

The result is typically lower pressure (2-4.5 atmospheres vs. 6 for Champagne), lower alcohol (often 10-12%), and a cloudy appearance from unremoved yeast sediment. The bubbles are softer and more irregular than Champagne's precise mousse.

The flagship appellation is Blanquette de Limoux Méthode Ancestrale, made primarily from the Mauzac grape — a delicate, floral wine with at most 7% alcohol and at least 6 g/L residual sugar. It's one of the wine world's most charming, and most underappreciated, sparklers.

But the modern explosion of the ancestral method comes through pet nat. Winemakers from the Loire to Oregon to Australia are bottling half-fermented juice from every grape imaginable — Gamay, Chenin Blanc, Riesling, even Syrah — creating playful, unpredictable, wildly individualistic sparkling wines that have become the unofficial drink of the natural wine movement.