Who doesn't know what a Sherry cask is? Certainly every self-respecting whisky lover knows it by heart these days - myself included. Or at least we all think we do! Well, Suntory's latest Yamazaki Refill Spanish Oak 2026 puts that to the test.
As it turns out, the ubiquitous yet so thoroughly loved Sherry cask - really the favourite child of the whisky world - is a lot more dimensional than is advertised. What lays beneath the snazzy banner is at least three parts - what type of fortified wine is used to season the oak, what quality is the fortified wine of, and how many times has the cask been filled with whisky - yet also of a singular baseline which is its origins being that of Spanish Oak. Now for the sake of illustration, a barrel made of Spanish Oak can be:
1. Seasoned with either Sherry or Montilla wine (the former having additional alcohol added for fortification and is aged in wooden barrels, whereas the latter not requiring additional alcohol and is first aged in earthenware jars before being transferred to barrels),
2. Of a range of wine tiers that range from cheap (which is later used to produce brandy or vinegar after seasoning) to drinking quality (bottled and sold as Sherry or Montilla after seasoning),
3. And finally, can be filled with whisky once (that is, First Fill) or numerous times thereafter (known as Second-Fill, Third Fill, or more generally Refill).
Barrels of Sherry stacked as solera in a Spanish bodega.
These are of course non-exhaustive, and can be further expanded to length of the seasoning of the barrels with wine, the toast level of the barrels, so on and so forth - yet, the crux of the matter is that all these factors therefore come together to form a barrel profile which then influences the whisky that is matured inside. And so, when a whisky label says that it's been matured or even finished in Sherry cask, there's in fact a whole lot of sub-text beneath that term that will shape how the whisky inside is.
Before Yamazaki, there was Akadama.
Now, as the story goes, when Shinjiro Torii had first established the Yamazaki Distillery in 1923 - which essentially kickstarted the Japanese whisky story in earnest, and is therefore the first and oldest whisky distillery still active in Japan today, making Japan's whiskymaking anniversary iconically the same as that of Yamazaki Distillery - he had in fact selected Spanish Oak casks as the first barrels in which he would age his, and Japan's, first single malt whiskies in. At the time, these Spanish Oak casks were used to transport Sherry and other Spanish wines abroad, and had thus been left available once the wines in them had been emptied out. As some might know, Torii had actually found considerable success having produced his own blend of sweet red wines (which was branded as Akadama Sweet Wine, and was made from imported Spanish wines) which he had spent years formulating upon having observed that the Western wines he had initially imported having been too harsh for the Japanese palate. It was on the back of this payoff that Torii was thus able to venture into his subsequent distilling fame.
The "Sherry Cask" label is a more complex process than meets the eye.
And so in paying homage to Torii's earliest appreciation of Spanish Oak casks, Suntory has thus produced the new Yamazaki Refill Spanish Oak 2026 expression that emphasises the use of Spanish Oak as still very much at the heart of the iconic Yamazaki Japanese Single Malt. More specifically, Suntory wants to highlight the deft use of in particular the Refill Spanish Oak (barrels in which whisky has been filled in prior after the initial Sherry seasoning), which it explains has a more subtle oak character with enhanced fruitiness, and an overall fresher and more vibrant profile as compared to First Fill casks (where only Sherry has been in the barrel prior) which are said to be of stronger aromas and a greater influence of direct and pronounced wood.
(Left to Right): Spanish Oak First Fill, Spanish Oak Refill (Dark Type), Spanish Oak Refill (Light Type), Yamazaki Refill Spanish Oak.
To illustrate this best, Suntory had during its Refill Spanish Oak debut prepared a flight of assorted Spanish Oak matured whiskies, including Spanish Oak First Fill, Spanish Oak Refill (Dark Type) and Spanish Oak Refill (Light Type), culminating in the new Yamazaki Refill Spanish Oak.
Having tasted through each style, we found that:
Spanish Oak First Fill: Herbal, treacly, opulent dried dark fruits, light nutty rancio, lacquer, leather, earthy coffee, cocoa powder, hazelnut praline, sandalwood incense, cigarboxes, rich, deep and luscious. Juicy and lush, rich and of depth.
Spanish Oak Refill (Dark Type): More rancio dominant, funky, dried mushrooms, dried dark fruits, walnuts, leather, varnish, salted olives, umami miso toffee, bouillon, soy sauce, pencil shavings, lacquer, candied, medicinal, burnt brown sugar, dry. Crystalline and polished, really sleek.
Spanish Oak Refill (Light Type): Sweeter and richer, butterscotch, buttered popcorn, light smoke, mascarpone, pine nuts, barley grist, honeyed, animal hide, vanilla cream, sandalwood incense, menthol, tobacco, musky tropical fruits of gooseberries, jackfruits and mangosteens, black pepper, herbal honey, concentrated and denser.
And so having tasted through the various styles of Spanish Oak ageing and finding out how each of them influences the Yamazaki whisky, it is of course finally time to get down to the newly released Yamazaki Refill Spanish Oak 2026!
Let's go!
Whisky Review: Yamazaki Refill Spanish Oak 2026, 48% ABV
This is composed of lightly and medium-heavily peated malt distilled in 2014 and 2015, which has then been matured in Refill Spanish Oak.
Tasting Notes
Colour: Amber
Aroma: Opens delicate and compact with wafts of nutty rancio alongside dried plums and prunes, with a sheen of wood lacquer. It's layered and detailed, with then a more lofty bit of honey over mascarpone, giving it a slight farmhouse rusticity. More on polished leather and walnuts, there's wisps of faint charcoal smoke, and also a more subtle exotic hit of sandalwood incense. Cusping it is then a touch of dried mushrooms and herbal roots paired with a floral and herbal fragrance of lavender and eucalyptus.
Taste: Medium-bodied, it's rich, candied and luscious. Super concentrated, really, yet not at all tight. Enveloped in a gloss of lacquer, polished leather and walnuts resides an incredibly juicy and almost syrupy core of honeycomb and mascarpone that's smoked with sandalwood incense. Also dense and packed of dried plums, prunes and figs, with those herbal tones of eucalyptus and manuka honey, as well as funkier dried mushrooms. Lifting the body up is then this super supple herbal bed of grassy, herbal, tortoiseshell jelly and aiyu jelly, once again dressed with ample scoops of candied honey.
Finish: Taking a more coastal turn here, the smoke comes through a little more readily, with then an almost maritime quality of wet moss, seaweed and salty sea spray. It only gets more green and herbal, with then pine forests, herbal cough syrup, eucalyptus and a more medicinal touch of ginseng and dried mushrooms. The finish is clean and opulent, filled in with drippy acacia honey, perfumed lavender, with then a lingering rancio of walnuts and polished leather that now meld in with the dried roots and purple florals.
My Thoughts
A really impressive and well composed whisky that shows much layered complexity, great definition and clarity, almost running through a full palette of Spanish oak tones. It bears great cause for appreciation and is incredibly engaging, offering a dram that is worth sitting with and meditating upon.
On the nose, it's initially more lean and compacted, rather delicate with this foremost sheen of rancio nuttiness. With time and some pressing on, almost all of a sudden, this really evocative pastoral bit of honey over mascarpone shows up, and once you've hit this breakpoint, all manners of beautiful sandalwood incense, dried herbs and spices, and fragrant florals then start to become immediately apparent. On the palate, it's much more accessible - almost wish fulfilment-esque, as if one were imbued with superpowers and somehow getting through almost ridiculously effortlessly - with this big jackpot of a core of syrupy honeycomb, sandalwood and juicy plums and prunes. It's absolutely delicious and straight up stunning! Yet it doesn't stop there, with the rancio present but in the background, allowing for a quick second breakthrough of a bed of lusciously supple of herbal jellies coaxed with candied honey. The finish is no slouch either, at first almost reminiscent of Islay's coastal qualities, before then taking a more forest-y character that would've felt familiar as its sibling, Hakushu. It then deftly closes out generously with an abundance of floral acacia honey, with a light rancio that lingers on.
Now, the Yamazaki Refill Spanish Oak doesn't immediately reveal itself, but rewards heavily the dedication to delicately peeling off each layer, which then opens up a whole other world. Really understated and elegant, but surely one for the connoisseurs, for whom this is masterfully immense.
Kanpai!
@111hotpot
