St-Feuillien Quadruple is a very dark and dense beer. She is noticeably alcoholic. She distinguishes herself by a complex and finely caramelized aroma and with shades of Madeira wine and candied fruit and an intense touch of fermentation esters (banana type). A slight hoppy smell (English style) completes the whole. The mouth is long with a powerful body built on the density and generous apparent extract.