The Mackie surname carries profound weight in Lagavulin's storied history. In 1861, James Logan Mackie became a partner at the distillery, marking the first Mackie family involvement, though his nephew Peter would ultimately leave a more indelible mark. Peter Mackie assumed control in 1889 and launched the White Horse blended whisky the following year, featuring Lagavulin single malt as its cornerstone. Simultaneously serving as agent for neighboring Laphroaig, Peter desperately sought to acquire that distillery. When Laphroaig's owner rebuffed him—believing Peter cared only for his own whisky interests—he was enraged. In retaliation, Peter built Malt Mill distillery within Lagavulin's grounds in 1908, an exact replica of Laphroaig's operation. This venture was doomed from inception, yet Malt Mill persevered until its permanent closure in 1962. Today, Malt Mill has achieved near-mythical status, with most disbelieving any stocks remain, though Lagavulin's visitor center curiously displays a bottle of new-make spirit. Lagavulin's production features a 4.4-ton stainless steel mash tun with a 4-hour cycle, and ten larch washbacks holding 22,000 liters each, undergoing a prolonged 55-hour fermentation. The distillery operates two pairs of stills, with unusually large spirit stills filled nearly to capacity—minimizing copper contact and, combined with deliberately slow distillation, creating Lagavulin's signature rich, peaty, and robust character. New spirit is filled into 'pig's head' butts (modified port pipes), though only 5,000 casks mature on-site; remaining new-fill casks age inland. In 2019, Lagavulin maintained continuous operation—7 days weekly, 24 hours daily—conducting 28 mashes per week and producing 2.5-2.6 million liters annually. The core range remains intentionally limited: a 12-year-old cask strength (part of Diageo's annual Special Releases), a 16-year-old Distiller's Edition finished in Pedro Ximénez sherry casks, and since autumn 2017, an 8-year-old expression bottled at 48% ABV. Notable limited releases include the 2016 200th Anniversary trilogy—an 8-year-old (later becoming core), a 25-year-old sherry-matured, and a 1991 vintage—and the 2019 Feis Ile Festival bottling: a 19-year-old at 53.8% ABV matured in three cask types (refill American oak, American oak sherry, and European oak sherry). The distillery also featured in Diageo's 2019 Game of Thrones collection with a 9-year-old 'House Lannister' edition, alongside a travel-retail exclusive 10-year-old released in August 2019.