Whisky Glenrothes 10 Year Old. A great whisky for those looking to try Glenrothes for the first time. This sweet, zesty dram has a yellow label that denotes the colour of the grape at the point it is plucked from the vine. This whisky is part of the Soleo collection, a series paying homage to the ageing process used on some sherry grapes. Each whisky in the series has a different colour label, each reflecting a different stage of the grapes' maturation.