

About
Alvinne Sigma is a dark, robust sour ale at 8% ABV that builds on the traditional Flemish Oud Bruin style. Part of the Omega–Phi–Sigma trilogy, it is brewed with Morpheus, Alvinne's wild-captured house yeast. The beer strikes a careful balance between sweet and sour: a full malt profile featuring dark fruit and caramel notes meets a pronounced lactic tartness. Matured in stainless steel, Sigma develops a clean, integrated sourness without the funkiness of wild fermentation, creating a complex, vinous character that lingers dry on the finish.
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