Alvinne Sigma

General Information
Alvinne Sigma is a dark sour beer with 8% alcohol, and it forms the powerful finale of the trilogy Omega – Phi – Sigma. This tasting beer is a modern interpretation of the classic Flemish old brown, but with a distinctive twist. The beer is fermented with the house yeast Morpheus and carefully matured in stainless steel tanks, without wood or wild fermentation. The result is an intense combination of sweet and sour, complex but perfectly balanced.

Flavor Profile of Alvinne Sigma
Sigma pours a deep chestnut brown with a firm foam head. In the aroma, you find notes of dried dark fruit, balsamic, light wood tones, and malt sweetness. The taste is characterized mainly by rich acidity and soft residual sweetness, giving the beer a viscous yet refreshing structure. You taste plums, figs, caramel, and a tang from yogurt or cherry pits, finished with a long, slightly sticky aftertaste.

Serving Advice
Alvinne Sigma is a beer to enjoy slowly. Perfectly suited for:
– Braised beef or game dishes
– Roasted duck or lamb with fruit compote
– Blue-veined cheeses or aged Parmesan
– Dark chocolate, fig tart, or nut desserts

Serving temperature: 10–12°C
Style: Flemish-inspired dark sour beer
Alcohol percentage: 8.0%
Aging: In stainless steel tanks (no wood)

Did You Know
Sigma is the strongest beer within Alvinne’s trilogy. While Omega is light and fresh, and Phi seeks balance, Sigma is rich, dark, and complex. The used Morpheus yeast ensures controlled souring without brett, allowing the beer to maintain its elegant sour profile. It is a tribute to the classic Flemish style – but in a modern, powerful jacket.