Bunnahabhain 25 year old

Colpo di Fulmine! The infamous “thunderbolt” of The Godfather. It’s that intense, powerful, and captivating love at first sight. Many witness it in their life, some are touched by it briefly, and an extremely lucky few go their whole lives being melted by its heat. Sometimes the thunderbolt is permanent and manifests in a singular form, while other times it’s fleeting and appears in different incarnations. Regardless of its appearance there’s no denying its power for those who have been struck.

My own thunderbolt struck several years ago and has remained in its singular, original form: soft and subtle yet vigorous and rich. Embodying the classical traits of the month of March. Coming into my life like a lion and going out like a lamb. Not to be described, but only to be experienced. Vanishing when she wishes only to return on a whim, somehow becoming even more enticing with each instance of her apparition. Reminding you of how much you have learned and how far there still is to go. A modern twist on classical beauty. She’s unforgettable, rare, well put together, and expensive. If I didn’t know any better, I’d claim she truly is divine. Just when I think I’m out, she pulls me back in! She is none other than [NAME REDACTED]… well actually she’s Bunnahabhain 25!

As you might have guessed by this point, Bunnahabhain (pronounced “boon-ah-har-ven” and is Scots Gaelic for “mouth of the river”) makes some of my favourite single malt scotch whiskies. It is also one of the exceptionally few distilleries whose entire core range of age statements I keep stocked. For those unfamiliar with the distillery, or who have only heard about it or seen it in passing, Bunnahabhain represents the gentler side of Islay. The core age statements lack the heavy peat, smoke, iodine, and meaty qualities that most of the neighbouring distilleries possess. It’s a softer style of whisky, yet richer and with a wider array of flavours. While many expressions from Ardbeg, Laphroaig, or Octomore will f**k you (can we swear on Malt?), Bunnahabhain makes sweet love to you. The character of its distillate leans more towards creamy and nutty flavours, supplemented by no small degree of fruit and spice from sherry-influenced maturation.

Permit me to go over some history and production methods of the distillery; I adore that kind of stuff. Picking apart the roots and procedures gives insight into how a product you like comes to be, and I find that I owe it to the whisky craftsmen (and myself) to be educated in such a luxury product that much of the world does not have the means to enjoy. There’s nothing wrong with spreading a little knowledge, plus comparing techniques utilised by various distilleries can help you find similar whiskies that you may enjoy in the future. Besides, we all fawn over what we love in one way or another. All that being said, please feel free to skip down to the part of this article you came here for while I indulge in a little nerding out!

Bunnahabhain itself was founded in 1881 in a location so remote that a new 1-mile road had to be constructed to connect the distillery with Islay’s primary roads. The water utilised in the mashing process originally came from Loch Staoinsha but nowadays it is supplied from privately owned water spring, which is replenished by the Margdale River. It was incorporated into the Islay Distillery Company Ltd in 1882 and by 1887 the distillery became a founding member of the Highland Distillers Company, themselves a precursor to the infamous Edrington Group. All of the output for the majority of Bunnahabhain’s history has been placed into blends, including: Famous Grouse, Cutty Sark, and Black Bottle. In fact, by the time of the 1920s, Bunnahabhain was supplying heavily peated whisky to 180 blenders. The peat level at this time was around 35 to 40 ppm, most similar to the peat levels found in the Kildalton trio of Lagavulin, Laphroaig and Ardbeg. Bunnahabhain would not bottle it’s own single malt for sale until the 1970s, almost a full century after its founding! Can you believe that in this day and age of the modern whisky boom?! A distillery not selling its own single malt for half of the time it has existed?!

By the 1960s, Bunnahabhain made the decision to specialize into malt peated at low levels (2 to 3 ppm), as well as unpeated malt altogether, for its whisky. The distillery has been open, closed, and limited in production in various degrees throughout the 20th century, but the past 20 years has seen something of a renaissance for Bunnahabhain. Edrington mercifully released the distillery from its clutches in 2003, and after a decade of production increase and various changes of ownership, it ended up in the hands of South African distributor and liquor conglomerate Distell.

Fun fact about Bunnahabhain: the original 7-ton capacity, cast iron mash tun was removed in 1900 in favour one with over twice the capacity. The old mash tun found its way to Bruichladdich, who utilize it to this day. Additionally, Bunnahabhain has not malted its own barley since 1963 and nowadays it is sourced from other producers. Around 80% of its malt is unpeated and supplied by Simpsons Berwick Maltings, with the remaining 20% being peated and provided by Port Ellen Maltings. Another unique feature of the distillation process at Bunnahabhain is that the grist within the mash tun is sprayed with increasingly hot water four times instead of the usual three times. The first two sprays of hot water are 64°C and 80°C respectively, while the last two sprays are at 90°C. The extra spray of water is done to accommodate the larger size of the mash tun, which can hold up to 15 tons of malted barley at a time. The worts from the first two sprays of hot water are destined for the washbacks with the last two being retained for use in the following mashing cycle.

Efficiency is the name of the game for the fermentation cycles at Bunnahabhain. The fermentation runs on Monday and Tuesday last for two days while those done on Wednesday, Thursday, and Friday last about 4.5 days with distillation being performed the next week. The stills at Bunnahabhain are the tallest on Islay and among the tallest in the entire single malt scotch industry, just shy of 21 feet. Theoretically, this keeps the heavy, oilier compounds in the body of the still with the lighter compounds rising up the neck. A lighter and cleaner spirit is the outcome. The resulting spirit from each fermentation run is mixed back together before being placed into casks. A combination of both ex-bourbon and ex-sherry casks are used to age the Bunnahabhain distillate, along with an ever-expanding array of various types of wine barrels. These casks are placed into dunnage-style warehouses that are no more than 100 yards of the ocean (possibly contributing to the slightly briny flavour of the whisky). For those who don’t know, a dunnage warehouse is one with an earth floor, stone walls, and a low roof made out of a metamorphic rock called slate. Casks are only allowed enough room to be stacked 3 barrels high, and the overall design allows for maximum air circulation and increased humidity. This prevents significant temperature variation from occurring in areas of the warehouse and limits the amount of spirit lost to the notorious angel’s share.

Non-chill filtering and elimination of E150a caramel colouring is something that Bunnahabhain embraced back in 2010, much to the joy of us whisky nerds. They also increased the proof of their main age statements to 46.3% ABV, so what you get is a much more natural presentation of a whisky compared to chill-filtered and lower proofed counter parts. While the entire core range of age statements are quite good in my opinion, the 12 year-old remains one of the most solidly well-made and reasonably priced single malts available on the market to this day. For those of you who are curious about a different side of Islay, I promise that your curiosity will be rewarded in visiting the expressions of Bunnahabhain. It’s a scotch-lovers scotch, made by scotch lovers for scotch lovers.

This may be a good time to bring up the issue of batch variation. Keep in my mind that these are merely my anecdotal experiences and they will most likely differ from yours. Bunnahabhain does make excellent whisky but I have experienced noticeable differences between batches and years. Nothing anywhere near to as bad as the drop off in quality from notorious Edrington single malts mind you. The 12 year-old is by far the most consistently good, it warrants a spot on anyone’s shelf at any time. The 18 is a big step up in richness and complexity yet I have found the 18 can range anywhere from what I would score 5/10 to 8/10, or average to great. That can be a bit disappointing when spending the kind of money that many 18 year-old whiskies command. I have only ever owned two bottles of the 25 and have nothing but good things to say. Batch variation is natural and unavoidable since no two runs of mash or ferment will ever be exactly the same. That also goes for the barley, as no two crops will ever be identical in their sugar content and composition. For this reason the job of the master blender/distiller is both of utmost importance and unforgiving. They must ensure that each batch is as identical to the previous as can possibly be achieved. It’s one thing to offer a quality product, it’s quite another to maintain that consistency from year to year. Bunnahabhain does a good job of this with the 12, not too bad with the 18 but with room for improvement (in my experience), and the 25 I haven’t drank enough bottles of to make a proper comment. When the 18 is off it’s average and when it’s on it is fantastic.

Lastly, before getting into the review proper, it is important to talk about the types of casks that are used for older whisky. It is not often that a distillery begins the aging process with the intention of making an old whisky. Rare is the cask that can hold a whisky for decades without annihilating any of the distillate’s character and overpowering it with sheer woodiness. The cask has to be just active enough to slowly caress the distillate with years of sugar breakdown, but not so active that the spirit would become one-dimensional. One method of tackling this issue is to use refill casks for the entire aging process. Supplementation with more active first-fill casks can also be done if the refill casks prove to be too gentle. The danger is that you risk ruining something that may be aging relatively well with an overactive fresh cask, a la Bladnoch Talia.

But enough of all this technical mumbo-jumbo and production details, you came here for Bunnahabhain 25! This particular single malt is sentimental to me as it was the first highly aged expression I purchased a full bottle of in my whisky journey. Ordering and tasting that first pour from a bar, out of sheer curiosity one night, is what ignited my own personal thunderbolt with the 25 year-old. I purchased a full bottle as soon as I had the opportunity. There was no doubt about in my mind that this was my palate equivalent of the thunderbolt. Love at first…sip?

This particular iteration of the Bunnahabhain 25 was bottled at 46.3% ABV with non-chill filtration and no added colouring. Those are the magic words we want to hear and see more distilleries embodying, isn’t it? While the exact cask mix is unknown, this was aged primarily in a mix of refill bourbon and refill sherry casks (with the mix being more bourbon than sherry) before being transferred into a combination of 1st fill and 2nd fill Oloroso sherry casks for a short finishing period. I am told that there is no definitive cask recipe, so it is up to the master blender to select which casks have the desired traits from year to year. Cask placement within the warehouse is not as vital due to the smaller, more compact nature of the dunnage-style warehouses. Bunnahabhain does have one warehouse for racking, but again it is small enough that temperature variation is minimal.

The packaging is gaudy, but frankly, I have seen much worse. The wooden box is beautiful, polished, and secures well. The latches and tiny plaque are classy and at the very least it feels like you are getting your money’s worth in presentation, even if you could knock $50-$80 off the price without this box. There’s some type of burlap cloth material nestling the bottle inside and it almost reminds me of a casket transporting precious goods. Maybe that’s what they were going for? This is the older packaging, however. Recently they switched to a newer packaging that is more of a plastic box with the bottle sliding out from the side, similar to the Glenlivet 21 presentation. Either way this will definitely look the part it plays on your top shelf or cabinet if you like that sort of thing. Price-wise, this cost me ~$390.00 CAD from the infamous Ontario liquor monopoly. Not too bad seeing how Master of Malt has it listed for $582.70 CAD (note they do not deliver to Canada) as of March 3, 2020. My rant on the LCBO and its fickle pricing shall come one day, if I can stay calm enough while writing such a piece. The Whisky Exchange will set you back £345, which is the same price as Master of Malt, or £309.34 via Amazon. Note these links are for the current version. Anyway, time for some liquid pleasure!

Bunnahabhain 25 year old XXV – review

Color: I always struggle with this. Older whiskies all tend to be some various shades of orangey-brownish. Let’s call this one some shade of copper?

On the nose: The first flash of that thunderbolt, cracking into your life. The promise of something special to come! Rich and dense sherry at first whiff, followed by a big hit of honey, orange peels, damp earth, and something that reminds me of shoe polish/lacquer. I remember the shoe polish/lacquer being much more upfront during the first two pours I had from this bottle, it seems to be yielding more to the earthy sherry and honey as it oxidizes. Letting it sit and open for another 15 minutes brings smells of baked candied almonds and chestnuts, the kind my mother and grandmother used to make at Christmas time. It is joined by a leathery scent and the faintest smell of what could be described as tobacco, along with cherries, dark chocolate being melted in a pan, heather flowers and more of that damp, earthy warehouse. After 30-45 minutes the scent is taken over by this incredibly rich and dark honeyed note. Kind of like Manuka honey that’s been caramelized for a dessert. It’s nothing short of incredibly how much this evolves in the glass and how balanced it all is. No scent overly dominates the others; everything gets a turn in the spotlight. This is definitely a nose that rewards patience.

In the mouth: Unique chili pepper spiciness on the lips that I’ve never really gotten from a whisky before. Not a bad quality but certainly different. As it sits on the tongue and palate there are flavours of hazelnut, milk chocolate, blueberry jam, and a hint of some kind of fresh berry that I can’t quite pin down. I would say it’s most similar to a blackberry. The taste of sugarcoated plums is present as well. The longer it sits in the glass, the more a walnut and chestnut flavour starts to develop and really coats the mouth with waxy creaminess. A gingery, cinnamon, nutmeg, brown sugar sensation creeps in towards the 20-minute mark, and the unmistakable taste (at least to me) of honey crisp apples after the 30-minute mark. The overall mouth-feel is really creamy. The back of the tongue and throat are left with notes of black pepper, toffee, roasted nuts, light saltiness/brine, and an almost imperceptible hint of smoke. It might be more earth than smoke as I’m having a difficult time telling them apart due to how subtle it is. However, much like the Apollonia of your life, it is gone too quickly. The finish only sticks around for 10-15 seconds before disappearing, prompting you to take another sip as you chase that dragon.


This is a hell of a dram. The balance really struck me, as all the flavours are present without fighting each other. There’s no heavy oak or woodiness that I could detect either, which is impressive for a whisky of this age. Sure, those warehouse and earthy scents are there, but no outright woody smells or flavours at all. The true way to tell would be to do a blind test though, which I am eager to try with this one someday. It is safe to say that Bunnahabhain 25 is the epitome of the subtle yet rich style of whisky. The flavours are soft but require no detective work to find. It’s the whisky equivalent of the richest yet lightest tiramisu you’ve ever eaten after an Italian dinner.

I don’t know that I could have fully appreciated this even as little as 5 years ago. It rewards patience and is easily a scotch that you could spend an hour or more picking apart and enjoying in the glass. When chasing the peat smoke and brine monsters of Islay, the sherry bombs of the Highlands, or that funky groove taking over Campbeltown, it’s easy to overlook a whisky of this style even when it can compete with the best the other regions have to offer. The only thing that has marred what I consider to be an otherwise perfect whisky is the somewhat short finish. It doesn’t vanish right away, it sticks around just long enough that you wish it lasted even a few seconds longer.

When I score a whisky, particularly when I score one highly, it is equivalent to me telling you to go spend (or not spend) your hard-earned money based on my word and reputation alone (not to mention the reputation of MALT itself). Bunnahabhain 25 is a whisky that I truly feel is worth the money if you have experience with scotch and are looking for a special bottle for yourself or someone extremely close to you. In fact, I almost want to say don’t share this with anyone, it’s that good. Certainly among the top official bottlings I’ve had from a distillery. That finish though. Like a crack in the Sistine Chapel ceiling. It’s the only flaw holding this back from being divine. Instead, it is simply phenomenal.

Given how much Bunnahabhain and Bruichladdich seem to be enjoyed here at MALT, I should pledge that my next review will be of something more contrarian and will surely earn looks of disdain. A certain OB Laphroaig comes to mind. Until next time!

Score: 9/10

There are commission links within this article but as you can see, they don’t affect our judgement. Photographs 1 and 2 kindly provided by The Whisky Exchange.

CategoriesSingle Malt

Greg has been following and consuming the world of single malt scotch and bourbon whiskies for 13 years as of 2020. His educational background is in science with degrees in Astrobiology, Life Sciences, and Electrical Engineering. Some of his hobbies include amateur astronomy, weight lifting, playing piano and guitar, and posting whisky reviews on Instagram.

  1. Victor says:

    Great write-up! I did a side-by side comparison between 2012 and 2017 versions, and they were two different beasts indeed. Link in “website” field on this comment.

    Some interesting notes – I initially thought the XXV packaging indicated a different generation, but there are still XXV boxes sold in some markets. I’ve been told that the whisky that goes in is the same. I guess that means that bottling year is the only real “generation” indicator! I haven’t tried the older, 43% and colored version yet.

    1. Greg says:

      Hi Victor! Thank you, I’m glad you enjoyed it! As far as I am aware the bottle I have is a 2017/2018 version. The 2012 version is unfamiliar to me but I would also love to do a side-by-side with them, as well as the newest iteration that lacks any “XXV” labelling.

      As far as the packaging goes, you’re right that the bottling year is the only real indicator. The packaging seems to have been either reused or revamped (depending on the market) when they rolled out the new abv/ncf versions.

      1. Greg says:

        Upon further investigation it appears that my bottle (bought in 2014) is indeed a 2012 bottling. Now I’m more curious to try the modern versions to compare.

  2. John says:

    Hi Greg, I found this review surprising. I recently had one of these new Bunna 25 year olds and found it lacking compared to the Bunna XXVs. Good thing you mentioned the inconsistencies among the batches.


    1. Greg says:

      Hi John! I think the bottle I have is one of the “XXV” iterations, but it would be interesting to compare with the newest 25 year-old Bunna, as consensus seems to be the newest 25 is lacking somewhat. I find the 18 to be effected by batch variation the most, but the 25 probably has its good and bad years as well.

      In either case, this specific batch was excellent and worth hunting down, even just to try a sample.

  3. Welsh Toro says:

    Wow Greg, great review and a lot of words. I’m conscious of Shakespeare’s Henry VI when the future King Richard III is denied the death of Margaret of Anjou – “Why should she live to fill the world with words?” No criticism whatsoever, I watched the BBC adaptation last night so it’s fresh in my mind. I’m also of a mind of Peter Schaffer’s play Amadeus when the Emperor Josef II tells Mozart “too many notes” and Mozart responds “There are just as many notes, Majesty, as are required, neither more nor less.” Exactly, a very nice review for those of us that like Words.

    Bunnahabhain 25 is a very expensive bottle for most mere mortals. I have no doubt it’s excellent but it’s freaking expensive for a drink. The Bunnahabhain 12 is one of the great value drinks on the market at £36 and even cheaper in a certain supermarket sale. The 18 is better but not that much so. I’d rather 3 bottles of the 12 for the money. That takes me to the 25. How many bottles of 12 can I buy for that? Quantity/Quality – the eternal question. If I was rich I’d buy a bottle but it’s beyond my sensible limit. Cheers. WT

    1. Deryck Hall says:

      I’ve come late to Bunna, but I have been very impressed. The 12 year old is a whisky to savour, one for special occasions or as a night cap to round off a good meal (I haven’t found it at under £42 unlike Welsh Toro). The Stiuireadair is a fine whisky but more likely to drink it while watching re-runs of the Mark McManus-era Taggart during lockdown. And at £32 from my local supermarket it is great value.

      The 25 is well outside my price range.

      1. Greg says:

        Better late than never, welcome to the joys of Bunnahabhain! The 12 is absolutely a shelf staple, and perfect as a special occasion sipper on its own. I have not had the Stiuireadair before, I’m guessing it’s more of a traditional/peated style?

        25 year-old aside, your prices in the UK are spectacular when compared to across the pond!

    2. Greg says:

      Hello Welsh Toro! To be compared to Shakespeare, Peter Schaffer/Amadeus, or Mozart himself in any capacity is humbling. You actually chose my favourite scene from that entire play! This review did come out lengthy, but Bunnahabhain is in my top 3 favourite distilleries and I wanted to do them justice. Plus I can’t help but give lots of details, it’s a leftover artifact from my years in science.

      I agree that Bunnahabhain 25, and pretty much any whisky over the age of 21, is quite expensive. When you get into the realm of older whiskies the “value-for-money” factor tends to go right out the window. The 12 is still reliably solid and one of the best products on the market right now, with the added benefit of being good value. However, this particular version of the Bunnahabhain 25 is truly stellar to me and is absolutely a league above the 12 in terms of complexity. I did bring up the issue of batch variation as I have found that some bottles of the 18 were on par (or not as good) as the 12, while some other bottles of the 18 were far better than the 12.

      At the end of the day, if you are in the market for an expensive and old whisky then this Bunnahabhain 25 would be one of the best choices. Most people would be more than content with the 12, however. It’s difficult to be balanced when taking price into account because it’s so variable around the world. For example, you mentioned that Bunnahbhain 12 is £36 in your area. In my area it is more than twice that price (due to currency differences plus a significant markup from the merchant) and the provincial monopoly ensures there is no other competition to buy from.

      Quantity and quality, the rich and the poor, a debate more relevant now than ever given the current market. At the very least it can be said that Bunnahabhain makes something for every whisky drinkers price range. Cheers!

  4. David James says:

    Great review and to be honest the XXV is my absolute favourite drink of all. Yes expensive, but worth every penny and a total joy to drink.
    I currently have 12 and 18 year old and am anticipating buying a XXV shortly. I simply can’t wait.

    1. Greg says:

      Hi David,

      Thank you, I’m glad you enjoyed the review! This particular version (XXV) was a bottle I procured in 2014, just beware that there has been variation in batches since then. Generally speaking it is a lovely whisky though, and in my top 10 favourites for sure. I hope you’re satisfied with your bottling.

  5. Bill says:

    What’s with the Jim Murray-esque sex shit? To paraphrase a write-up I saw recently: “Have you ever been having sex and thought to yourself, ‘Wow, this is just like Bunnahaibhain 25?!'”

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