Diageo Rare Series Adds 41 Year Convalmore From a Ghost Distillery
Diageo's Rare Series just got its second chapter, and it starts with a whisky from a distillery that no longer exists. Convalmore 1984 is a 41-year-old Speyside single malt, filled into casks shortly before the distillery shut its doors in 1985. Alongside it comes Dalwhinnie 1989, a 36-year-old from one of Scotland's highest and coldest distilleries. The theme is simple: great Scotch that quietly endured some brutal winters.
What Makes This Release Special?
Rare Series is Diageo's collection of very old, very scarce Scotch, and this is only its second chapter after the debut on April 30, 2026. The Convalmore is the headliner: a ghost distillery whisky from four refill American oak casks, and Diageo says the original producer had bottled it only five times before.
A ghost distillery is one that has closed for good, so every remaining bottle is a finite piece of history. Convalmore sat in Dufftown, in the heart of Speyside, and almost all of its output went into blends. At one point it was a key malt in Black & White, which makes a single malt bottling of this age a real curiosity.
The Dalwhinnie has its own twist: an unusually long finish of more than four years. Diageo master blender Dr. Craig Wilson said the cold turned into "an enveloping, honeyed warmth and complex spice."
Inside the Bottle
Convalmore 1984 Rare Series is a 41-year-old single malt from Speyside. It matured in four refill American oak casks, meaning casks that held whisky before, so they add gentle influence and let the distillery's character lead.
Dalwhinnie 1989 Rare Series is a 36-year-old Highland single malt. It aged in American oak hogsheads (a mid-sized barrel) that were seasoned with Amoroso sherry, a sweeter style of sherry. After that came the extra-long finish of more than four years in cask. According to the brand, the official notes highlight honeyed richness and the scent of wild moorland.
Diageo did not release tasting notes for the Convalmore in the material we reviewed.
The Story Behind Diageo Rare Series
Diageo draws on more than 10 million casks across over 30 distilleries, which is a good place to go hunting for treasure. Rare Series is where it shows off the finds. The first chapter in April featured Blair Athol 1991, Clynelish 1983, Caol Ila 1983, Talisker 1992 and Glenury Royal 1970. At 55 years old, that Glenury Royal is the oldest single malt Diageo has ever released.
The idea is patience over schedule. Diageo says future editions will arrive only when its Master Blenders decide the whiskies have revealed their finest character. As Diageo Luxury Group managing director Julie Bramham put it at launch, rarity is "revealed over time."
Dalwhinnie has a place in Diageo's history too. In the late 1980s, United Distillers launched a series of benchmark single malts from six distilleries across Scotland, and Dalwhinnie was one of them.
Price, Proof and Availability
Official Names: Convalmore 1984 Rare Series; Dalwhinnie 1989 Rare Series
Category: Single malt Scotch whisky (Speyside and Highland)
Age: 41 years (Convalmore); 36 years (Dalwhinnie)
Limited Edition: Part of the second chapter of Diageo's Rare Series
US Availability: Not confirmed. Price, ABV and US markets have not been announced. Collectors can register interest through Diageo Rare & Exceptional or rare-series.com
Did You Know?
The name Diageo was created in 1997 by branding consultancy Wolff Olins, from the Latin word for "day" and the Greek root for "earth."
Dalwhinnie's cold climate is part of the story here: Diageo's Rare Series theme this round is Scotland's remote corners and harsh winters.
Tonights Poison Take
This is a collector's release in the truest sense. A 41-year-old whisky from a closed distillery, with a documented bottling history of just five releases, is exactly the sort of bottle serious Scotch fans watch for. The Dalwhinnie adds a very different profile at a younger age, with the long sherry-seasoned finish as the hook. Pricing has not been shared, so the register-your-interest route is the one to follow if either bottle is on your list.
Bar Talk: That Convalmore was filled just before its distillery closed in 1985, and 41 years later it is only the sixth time anyone has bottled it.
Know a Scotch collector who loves a ghost distillery story? Send this their way, and tell us in the comments which of the two you would want to pour first.
More on Tonights Poison
About the author: Jas Sawhney (Tonights Poison) has spent 18 years in the beverage alcohol industry and shares new releases, tastings and spirits news as @tonightspoison on Instagram, TikTok and YouTube.
Please enjoy responsibly.
Comments