Sercial

Sercial is a Portuguese white grape variety, commonly associated with the eponymous style of the Madeira fortified wine. Sercial gives the driest style of Madeira, containing up to up to 1.5% residual sugar; Verdehlo (a medium-dry style) has up to 2.5 % residual sugar and Bual 3.5% and Malmsey/Malvasia has more than 4% residual sugar.