|Article number:||ALVINNE SIGMA|
"Sigma is a dark sour ale. It pours a murky dark brown, with a lively head that quickly disappears completely. The aroma is typical of a sour ale, strongly acidic, with a little funkiness in the background. The flavour is like a Flanders Oud Bruin, with a strong, sharp acidity which grips the sides of the tongue early. Tartness of green apples and a prickly carbonation make for a lively mouthfeel. There is subdued dark malt, which softens the puckering somewhat. The finish is very dry, sucking the moisture from the mouth, with a lingering tartness."