Kavalan Solist Vinho Barrique Cask Strength Single Malt Whisky is one such expression, bottled at a fiery 110+ proof cask strength and aged in American white oak ex-wine casks that were first open-air seasoned for at least 24 months. The result is a formidably complex sherried profile that pays homage to Portuguese wine's influence on malt whisky, with 'vinho' meaning 'wine' in Portuguese, and 'barrique' referring to the type of barrel.