Mortlach

Active
mort-lack
Speyside · Est. 1823 · Diageo
Dufftown, Keith, Banffshire AB55 4AQ
11
Expressions
11
With Tasting Notes
100%
Completeness

About

Dufftown's first distillery and one of the most distinctive in all of Scotland, known for its legendarily complex '2.81 times' distillation process -- a partial triple distillation using 6 mismatched stills of different sizes and shapes. This 'Mortlach way' produces a big, meaty, intensely concentrated spirit nicknamed 'the Beast of Dufftown.' Long a blender's secret (prized for Johnnie Walker), Diageo launched it as a premium single malt brand in 2014.

Production Details

Owner
Diageo
Parent Company
Diageo
Status
Active
Founded
1823
Still Type
Pot
Stills
6
Capacity
3.8M LPA
Water Source
Springs in the Conval Hills

The Mortlach Tale

In 1823, when James Findlater chose a plot of land beside the River Dullan in what would become Dufftown, he couldn't have known he was founding what locals would later call "the Beast of Dufftown." He simply knew the springs flowing down from the Conval Hills ran clean and cold, and the barley grew well in Speyside's gentle climate. Mortlach became Dufftown's first distillery, a pioneer in a town that would eventually house seven.

But Mortlach's early years read like a cautionary tale of Scottish enterprise. Ownership passed through hands like water through Highland peat—Findlater to Macintosh and Gordon, then to Robertson for £270, then to the Gregory brothers. By 1837, the Grant brothers of Aberlour had joined the fray, but production had ceased entirely. For years, the buildings served as a church and brewery, the stills silent, the mash tun cold.

Everything changed when George Cowie arrived in 1853. Where others saw complexity as chaos, Cowie saw opportunity. When his son Alexander joined in 1896, they expanded from three stills to six—but not in any conventional way. The Cowies installed stills of different sizes and shapes, creating what became known as Mortlach's "2.81 times" distillation process. It wasn't quite double distillation, wasn't quite triple—it was something uniquely their own.

Today, those six mismatched stills still stand in the Dufftown stillhouse like a copper orchestra of different instruments. Three wash stills and three spirit stills work in careful choreography, some spirit cycling through multiple vessels, creating a partial triple distillation that defies easy explanation. The Douglas fir washbacks hold fermenting wash for either 55 hours or 110 hours—short and long fermentations running side by side. Ancient worm tubs cool the spirit vapors, coiling copper serpents that add their own character to every drop.

The 12-ton full lauter mash tun processes 48 mashes each week, fed by those same Conval Hills springs that attracted Findlater two centuries ago. The water carries minerals from granite and peat, the geological signature of this corner of Banffshire written into every bottle.

When John Walker & Sons acquired Mortlach in 1923, they understood they'd bought something extraordinary. For decades, this intensely concentrated spirit became the backbone of Johnnie Walker blends, a closely guarded secret among master blenders. They called it "the Beast" for good reason—few single malts could match its power and complexity.

Under Diageo's stewardship, Mortlach finally stepped into the light. The 2014 launch as a premium single malt brand revealed what blenders had known for generations. Today, expressions like the 12-year-old Wee Witchie and 20-year-old Cowie's Blue Seal carry forward that tradition, each bottle a testament to the stubborn genius of mismatched stills and the 2.81 process that remains unchanged.

From its stillhouse windows, you can see across Dufftown to the other distilleries that followed Mortlach's lead. But none sound quite like this place—the particular rhythm of six stills working in calculated discord, the Beast of Dufftown still breathing fire after two hundred years.

Equipment

Mash Tun
12 ton full lauter mash tun
Condenser
worm tubs for cooling the spirit vapours

Production Process

Maltings
Floor maltings ceases in 1968
Fermentation
short fermentations (55 hours) and six long (110 hours)
Distillation
unique 2.81 distillation scheme which remains to this very day, originated from the 16 year old Flora & Fauna bottling which was first released in 1988
Water Source
Springs in the Conval Hills

Notable Features

  • First distillery to start producing in Dufftown
  • Uses unique 2.81 distillation scheme
  • Production plan for 2021 is a five-day work week of 48 mashes per week with a target of making 2.6 million litres
  • Core range consists of 12 year old Wee Witchie, 16 year old Distiller's Dram, 20 year old Cowie's Blue Seal and, for duty-free, the 14 year old Alexander's Way

Timeline23 events

1823The distillery is founded by James Findlater
1824Donald Macintosh and Alexander Gordon become part-owners
1831The distillery is sold to John Robertson for £270
1832A. & T. Gregory buys Mortlach
1837James and John Grant of Aberlour become part-owners. No production takes place
1842The distillery is now owned by John Alexander Gordon and the Grant brothers
1851Mortlach is producing again after having been used as a church and a brewery for some years
1853George Cowie joins and becomes part-owner
1867John Alexander Gordon dies and Cowie becomes sole owner
1896Alexander Cowie joins the company
1897The number of stills is increased from three to six
1923Alexander Cowie sells the distillery to John Walker & Sons
1925John Walker becomes part of Distillers Company Limited (DCL)
1964Major refurbishment
1968Floor maltings ceases
1996Mortlach 1972 is released as a Rare Malt
1998Mortlach 1978 is released as a Rare Malt
2004Mortlach 1971, a 32 year old cask strength is released
2014Four new bottlings are released - Rare Old, Special Strength, 18 year old and 25 year old
2018A new range is presented: 12 year old Wee Witchie, 16 year old Distiller's Dram and 20 year old Cowie's Blue Seal
2019The oldest official Mortlach bottling ever, 47 years, is released and a 26 year old appears in the Special Releases
2020A 25 year old Prima & Ultima is released followed by a 21 year old Rare by Nature
2021A 13 year old, partly matured in virgin oak, is released as well as a 25 year old Prima & Ultima

Core Range3

Mortlach 12 Year Old The Wee WitchieCore
12 Years43.4% ABV2018$50-65
Ex-bourbon and ex-sherry casks
4/4 Tasting
View tasting notes
Sight
Warm golden amber; light viscosity with thin legs. Clean and bright
Smell
Honeysuckle, peaches, and orange peel alongside clean cotton sheets and vanilla fudge. Oak, sandalwood, charred toffee and berries. A weighty dried fruit character balanced against fresh fruit
Sip
Tinned fruit — peaches and apricots alongside mango juice, tobacco leaves, and gingerbread. Chocolate and dusty cinnamon and ginger spices emerge in the mid-palate. Creamy toffee and floral oiliness joined by raisins and sultanas. Demerara sugar, dark chocolate, and light tobacco
Savor
Smooth and dry finish with hints of bitter plum. Spices linger alongside dried fruit. Medium length with residual warmth
View flavor map
Greengrocer: Stone Fruit (peach, apricot); Greengrocer: Tropical (mango); Greengrocer: Citrus (orange peel); Bakery: Sweet (gingerbread); Sweet Shop: toffee, fudge, vanilla; Tobacco Shop: tobacco leaves; Natural Foods: Spices (cinnamon, ginger); Furniture Maker: Wood (oak, sandalwood)
Mortlach 16 Year Old Distiller's DramCore
16 Years43.4% ABV2018$90-120
Refill and first-fill American and European oak ex-sherry casks
4/4 Tasting
View tasting notes
Sight
Rich amber gold; good viscosity with slow-forming legs. Deep and alluring colour from sherry cask influence
Smell
Rancio, toasted granola, almonds, and matchsticks. Dark fruits, honey, and caramel candies. Apricots, cinnamon and leather, followed by a touch of tobacco. Sulphury edge with pencil eraser — the signature Mortlach meatiness
Sip
Massive texture, almost chewable. Figs, white chocolate, cardamom. Savoury with a hint of orange peel, marzipan, and nutmeg. Dried cherries, stewed pears, cranberry, smoked soy sauce, dark toffee. Rich and balanced
Savor
Long, sweet, and coating finish. Drying spice with lingering dark fruit and toffee. The meaty distillery character persists through the finish with a warm glow
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Greengrocer: Dried (figs, dried cherries, raisins); Greengrocer: Stone Fruit (apricots, stewed pears); Sweet Shop: toffee, caramel, white chocolate, marzipan; Bakery: Sweet (toasted granola); Natural Foods: Spices (cinnamon, cardamom, nutmeg); Furniture Maker: Leather; Tobacco Shop: tobacco; Pub/Bar: Savoury (meaty, sulphury, smoked soy sauce); Natural Foods: Nuts (almonds)
Mortlach 20 Year Old Cowie's Blue SealCore
20 Years43.4% ABV2018$270-360
American oak ex-sherry casks
4/4 Tasting
View tasting notes
Sight
Deep amber with burnished copper hue; rich viscosity from extended maturation. Full and lustrous
Smell
Dense and intriguing — dried fruit, cedarwood, leather, and tobacco. Roast chestnuts, chocolate and dark berries. Gentle toasty maltiness with expressive antique oak, dried herbs, and hints of nutty cacao nibs. Oriented toward elegance rather than power
Sip
Aromatic citrus alongside wood spice, barbecue pork crackling. Berries and cocoa nibs with demerara-sugar dusted apples and olive-oil sponge cake. Bowl of mixed sultanas and raisins. Dark chocolate, dates, and prunes balanced against fresher apple and pear orchard fruit notes
Savor
Complex finish full of gingerbread, raisin and liquorice. Long and warming with leather and cedar persistence. The beast is refined but never tamed
View flavor map
Greengrocer: Dried (dried fruit, dates, prunes, sultanas, raisins); Greengrocer: Orchard (apple, pear); Sweet Shop: dark chocolate, demerara sugar; Bakery: Sweet (gingerbread, sponge cake); Furniture Maker: Wood (cedarwood, antique oak); Furniture Maker: Leather; Tobacco Shop: tobacco; Natural Foods: Nuts (chestnuts, cacao nibs); Pub/Bar: Savoury (barbecue pork crackling); Library: liquorice

Limited / Special Releases8

Mortlach 13 Year Old Special Release 2021
13 Years55.9% ABV2021$200-250
Virgin and refill American oak casks — distilled 2007
4/4 Tasting
View tasting notes
Sight
Gold with amber highlights; cask strength viscosity from virgin American oak. Bright and assertive
Smell
Mellow and rounded nose with freshly oiled wood. Savoury and meaty notes suggesting roast pheasant with redcurrant jelly. Deeper moorland base-note rich in heather pollen and freshly crushed herbs
Sip
Big, supersmooth texture with wonderfully intense vanilla-sweet taste that embraces a savoury core. Spicy-dry as the new oak makes its presence felt. Surprising kick of chilli-pepper. The virgin oak provides structure while the Mortlach meatiness provides depth
Savor
Long and deeply impressive finish with power, fruit and spiciness in perfect harmony. A warming peppery glow spreads out in the aftertaste. The beast bares its teeth through virgin oak spice
View flavor map
Pub/Bar: Savoury (meaty, roast pheasant); Sweet Shop: vanilla; Greengrocer: Berry (redcurrant); Natural Foods: Herbs (heather, crushed herbs); Natural Foods: Spices (chilli-pepper); Furniture Maker: Wood (freshly oiled wood, virgin American oak); Garden Path: Earthy (moorland)
Mortlach 16 Year Old Flora & Fauna
16 Years43% ABV1992$350-500
Ex-sherry casks — heavily sherried, classic Flora & Fauna bottling
4/4 Tasting
View tasting notes
Sight
Rich amber with warm copper tones from heavy sherry maturation. Deep and full — classic Flora & Fauna bottling colour
Smell
Sticky maple syrup, sharp sherried fruit, mulching grass and mint. Iberico ham, walnuts, dark malt, and well-aged sherry. Spiced fruit notes with noticeable Speyside citrus peel. A cult classic nose
Sip
Rich taste of caramel, brittle toffee and polished wood. Full-bodied with the unmistakable Mortlach meatiness enveloped in heavy sherry influence. Walnuts, dark malt, and dried fruit. The definitive old-style Mortlach bottling
Savor
Long, warming finish with sherry sweetness and savoury depth. Toffee and polished wood linger. A benchmark expression that launched the Mortlach cult following before discontinuation in 2014
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Pub/Bar: Wine (sherry); Sweet Shop: maple syrup, caramel, toffee; Furniture Maker: Wood (polished wood); Natural Foods: Nuts (walnuts); Greengrocer: Dried (dark malt, dried fruit); Greengrocer: Citrus (citrus peel); Garden Path: Earthy (mulching grass); Pub/Bar: Savoury (meaty, Iberico ham)
Mortlach 21 Year Old Special Release 2020
21 Years56.9% ABV2020$700-800
Pedro Ximenez and Oloroso sherry seasoned casks
4/4 Tasting
View tasting notes
Sight
Deep amber with rich mahogany tones from PX and Oloroso sherry casks. Viscous and heavy-legged at cask strength
Smell
Burnt orange intertwined with clove and cinnamon sticks. Dry heat like a fireplace in a log cabin. Mandarin fruit pieces and bright crisp red and green apples. Peppery, slightly savoury with boiled sweets and dried fruits
Sip
Velvety mouthfeel. Orange fruit stays at the top of the tongue while smoke hits the back. Voluptuous sherry character with dates, caramel, dark spices and oak tannins. Liquorice and a suggestion of chilli. The beast amplified by cask strength and double-sherry maturation
Savor
Ultimately drying, lengthy, slightly meaty finish. Liquorice, chile pepper warmth, and a warming glow that spreads across the palate. Power, fruit and spiciness in impressive harmony
View flavor map
Greengrocer: Citrus (burnt orange, mandarin); Natural Foods: Spices (clove, cinnamon, chilli); Sweet Shop: caramel, boiled sweets; Greengrocer: Dried (dates, dried fruits); Pub/Bar: Wine (PX sherry, Oloroso); Greengrocer: Orchard (apple); Smoke House: Faint (smoke); Library: liquorice; Pub/Bar: Savoury (meaty)
Mortlach 47 Year Old The Singing Stills
47 Years46.8% ABV2019$14000-16000
Single cask — filled 1971, one of three remaining casks from that vintage
4/4 Tasting
View tasting notes
Sight
Deep old gold with hints of polished mahogany; extraordinary viscosity from nearly five decades in cask. The oldest ever Mortlach distillery bottling
Smell
Initial burst of toffee, vanilla and creme fraiche. Stone fruit compote spiced with vanilla, ginger and cinnamon. Remarkably expressive and well-preserved for its age
Sip
Soft, ripe fruits — umeshu plums and peaches — balanced by firm tannins and a rich earthiness with just a little smoke. Intriguing sweet-and-sour interplay. The beast at its most refined and contemplative
Savor
Earthy and spicy finish with a touch of wood ash. Lingering tannins and stone fruit. Extraordinarily long, with the distillery's meaty backbone transformed into pure umami elegance
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Sweet Shop: toffee, vanilla; Greengrocer: Stone Fruit (plum, peach); Bakery: Sweet (creme fraiche); Natural Foods: Spices (ginger, cinnamon); Furniture Maker: Wood (antique oak); Garden Path: Earthy (earthiness, wood ash); Smoke House: Faint (wood ash, gentle smoke); Pub/Bar: Savoury (umami)
Mortlach Midnight Dusk Special Release 2024
NAS57.5% ABV2024$280-320
Refill and ex-bourbon American oak, finished in Italian Ramandolo white wine and Sangiovese red wine casks
4/4 Tasting
View tasting notes
Sight
Rich amber with warm reddish hue from Italian wine cask finishing. Full-bodied at cask strength with slow, heavy legs
Smell
Vinous first impression suggesting white grapes and Manzanilla sherry. Becomes fresh, floral and fruity — apple, apricot, peach, pineapple, green melon, cherry. Hawthorn and orange peel followed by marzipan, caramel, marshmallow, coconut oil, and acacia honey
Sip
Layered crisp fruit on the palate with caramelised miso and a hint of cured prosciutto. The Italian wine cask finishing adds an unprecedented vinous dimension to the meaty Mortlach character. Wonderfully umami with a sweet-savoury tension
Savor
Medium-long, dry and spicy finish with fruity acidulous nuance. White or Sichuan pepper at the close. The Ramandolo and Sangiovese influence leaves a distinctly Italian-Mediterranean imprint on the Beast of Dufftown
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Pub/Bar: Wine (Ramandolo, Sangiovese, Manzanilla sherry); Greengrocer: Stone Fruit (apricot, peach, cherry); Greengrocer: Tropical (pineapple); Greengrocer: Orchard (apple, green melon); Greengrocer: Citrus (orange peel); Sweet Shop: caramel, marshmallow, marzipan; Florist: hawthorn; Pub/Bar: Savoury (umami, caramelised miso, prosciutto); Natural Foods: Spices (Sichuan pepper)
Mortlach Rare Old
NAS43.4% ABV2014$60-80
Ex-bourbon and ex-sherry casks
4/4 Tasting
View tasting notes
Sight
Warm copper with golden highlights. Moderate viscosity
Smell
Soft sweet dark fruits, honey, vanilla, dry sherry and a whiff of dry spices. Stone fruits and brown butter. Light lemon, stale biscuit, blanched almonds, fresh banana and pale honey on deeper inspection
Sip
Thick and creamy with ginger and toffee. Brown butter richness with stone fruit sweetness. Medium body with the characteristic Mortlach meatiness present but restrained. Initially launched at premium NAS pricing, later discounted significantly
Savor
Medium finish with ginger warmth and lingering stone fruit. Drying oak tannins emerge at the end. The meaty backbone provides a savoury close
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Greengrocer: Stone Fruit (stone fruits); Sweet Shop: toffee, honey, vanilla; Bakery: Sweet (biscuit, brown butter); Natural Foods: Spices (ginger, dry spices); Natural Foods: Nuts (almonds); Greengrocer: Tropical (banana); Pub/Bar: Wine (dry sherry); Pub/Bar: Savoury (meaty)
Mortlach Special Release 2022
NAS57.8% ABV2022$250-300
Refill American oak casks, finished in virgin oak, tawny port and red Muscat casks
4/4 Tasting
View tasting notes
Sight
Deep amber with ruby-red hue from port and Muscat wine cask finishing. Rich and heavy at cask strength
Smell
Robust savoury, rich notes evoking a hearty cassoulet with haricots, tomatoes, spicy sausage, and crisp pork belly. Grape and red wine aromas entwine with meatiness then become more mineral as the nose develops
Sip
Rich and smoothly mouth-filling texture. Deep and intense taste — sweetly fruity rather than meaty. Spicy-dry as virgin oak makes its presence felt. Port and Muscat wine cask influence adds vinous sweetness and berry richness to the Mortlach distillery character
Savor
Long and deeply impressive with power, fruit and black pepper in perfect harmony. Spicy kick as it goes down with a warming glow spreading across the palate. The wine cask influence extends the finish with dried fruit persistence
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Pub/Bar: Savoury (meaty, cassoulet, spicy sausage, pork belly); Pub/Bar: Wine (port, red Muscat, red wine); Greengrocer: Berry (grape); Natural Foods: Spices (black pepper); Furniture Maker: Wood (virgin oak); Garden Path: Mineral (mineral notes)
Mortlach The Katana's Edge Special Release 2023
NAS58% ABV2023$260-300
Finished in ex-Kanosuke Japanese whisky casks and ex-Pinot Noir casks
4/4 Tasting
View tasting notes
Sight
Rich amber gold with subtle ruby tinge from Pinot Noir cask influence. Full and lustrous at cask strength
Smell
Melon and pear come through initially before savoury leather, cooked meat and pencil shavings emerge. Elegant tropical fruitiness contrasting cured meat and earthiness
Sip
Rich and full yet soft. Dry spiciness arrives with the umami element. Pear drops, toffee pudding, orange peel, marzipan, and plenty of soy sauce-style umami. Clove, red chilli earthiness, black pepper. The Kanosuke cask finish brings a precise, sharp quality — the katana's edge
Savor
Long and drying with fruit sweetness weaving through the savoury tones. The Japanese whisky cask and Pinot Noir influence add complexity to the meaty Mortlach backbone. Umami lingers with elegant spice
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Greengrocer: Orchard (melon, pear); Pub/Bar: Savoury (meaty, cooked meat, cured meat, umami, soy sauce); Furniture Maker: Leather; Sweet Shop: toffee pudding, marzipan; Greengrocer: Citrus (orange peel); Natural Foods: Spices (clove, red chilli, black pepper); Pub/Bar: Wine (Pinot Noir)