In 1898 Tamdhu’s founders secured their first precious shipment of sherry casks from the finest bodegas in Spain. Now over 100 years later, Tamdhu matures its whisky exclusively in the finest Oloroso sherry casks, nothing less. It’s one of the hardest and most expensive ways to mature whisky, not to mention it limits the amount of precious spirit able to be produced. So why do they do it that way? Tamdhu believe it’s the only way to create the very best single malt whisky.