Alvinne Sigma is a dark and strong beer that impresses with its skilful balance of sweet and sour flavours. As part of the "Omega - Phi - Sigma" trilogy, Sigma is matured in stainless steel tanks where the unique Morpheus yeast develops a refreshing acidity. This beer is strongly reminiscent of the traditional Flemish Oud Bruin, but stands out due to its strong alcohol content of 8%. Alvinne Sigma offers a rich and complex flavour experience that will delight both connoisseurs and lovers of strong beers.