Dublin-based Teeling Whiskey has added a 13-year-old Irish single grain to its portfolio. Teeling 13 Years Outdated is made predominantly from maize The 13-year-old was distilled predominantly from maize. It was aged in ex-Bourbon barrels for 9 years, earlier than being matured for an extra 4 years in ex-Bordeaux pink wine casks. Bottled at 50%