Glenmorangie Quinta Ruban is a velvety-textured single malt whisky that is transferred from the original ex-bourbon cask and then extra matured or "finished" in port pipes, shipped from the "Quintas" or wine estates of Portugal. The darkest and most intense whisky in the extra-matured range, Glenmorangie Quinta Ruban has spent 10 years maturing in American white oak casks, before being transferred into specially selected ruby port pipes from the Quintas or wine estates of Portugal.