Sherry-seasoned oak casks define The Glenrothes single malt Scotch whisky. Almost 90% of casks maturing at our Speyside distillery have previously held sherry, a wine made from white grapes grown near the city of Jerez de la Frontera in Andalusia, Spain. The Soleo Collection pays homage to the origin of whisky making by celebrating the flavoursome stages of the grape’s evolution. Soleo is the traditional sun-drying process which creates the foundation for crafting the finest sherry. Matured entirely in sherry-seasoned oak casks and 100% natural colour, this Collection introduces a multi dimensional flavour experience, uniquely shaped by the casks in which the spirit nurtured and matured.