Blandy's 5 year old Sercial was aged in American oak casks in the traditional 'Canteiro' system. This comprises of the gentle heating of the wine in the lofts of the lodges in Funchal. Over the years the wine is transferred from the top floors to the middle floors and eventually to the ground floor where it is cooler. After this gradual 'estufagem' the wine underwent racking and fining before the blend was assembled and bottled.