Every year Bruichladdich releases four expressions of Octomore. Series 16, announced in early 2025, is the subject of this guide. Series 16, announced in early 2025, is the subject of this guide. Strength close to 60% vol., peat levels among the highest in the world, prices starting from around £140. Underneath, though, there are two distinct distillates: 16.1 and 16.2 start from the same barley peated at 101.4 PPM, 16.3 and 16.4 from a different barley peated at almost double that. The difference between the two numbers in each pair comes down to the casks.
The logic of the series
Octomore is built on the idea that high peating and young age can work together. Bruichladdich doesn’t chill-filter, doesn’t add colouring, and bottles close to cask strength. Five years of maturation in a similar setup would normally produce a young, raw single malt: the point is that high-concentration peat on a well-made distillate holds up at 5 years.
The series divides into two pairs. The .1 and .2 use the same distillate: Scottish Concerto barley peated at 101.4 PPM, 5 years of maturation. The difference is the cask: first-fill ex-bourbon for the .1, European wood for the .2. The .3 and .4 start from Church Field barley, a single field close to the distillery, peated at nearly double the PPM. Same principle: same base, different casks.
First-fill casks have already given most of their compounds to the previous whisky, so they modify the distillate very little: the peat stays in the foreground. European casks of sherry, wine and oak intervene more markedly, adding sweetness and structure to the profile.
Octomore 16.1
The 16.1 uses 100% Concerto barley, malted at 101.4 PPM and matured for 5 years in first-fill ex-bourbon casks. Strength: 59.3% vol. Approximate UK price: around £140.
It is the expression closest to the distillate: the casks contribute little, the peat does almost all the work. Official notes: salted caramel, melon and apricot on the nose, then chocolate, coconut and a mineral, smoky thread through the finish. For anyone who doesn’t know Octomore, this is probably the sensible starting point: it is the baseline profile of the series, with no additional variables from European wood.
Octomore 16.2
The 16.2 starts from the same distillate as the 16.1 (101.4 PPM, 5 years) but takes a completely different maturation path: Oloroso and Bordeaux casks in the main phase, then a finishing period in Madeira and Moscatel casks. Strength: 58.1% vol. Approximate UK price: around £150.
Four cask types on the same distillate: the profile gains layers of sweetness compared to the 16.1. Official notes: burnt caramel, dried fruit, softer smoke. It makes sense to try it alongside the 16.1: the distillate is the same, and the comparison makes clear how much European wood changes things.
Octomore 16.3
The 16.3 changes the starting point. The barley comes from Church Field, a single field within the historic Octomore Farm close to the distillery, then malted in Inverness. It is the most peated of the series: 189.5 PPM for this release, almost double the 16.1/16.2 pair.
It matures in bourbon, Sauternes and Pedro Ximénez casks. Strength: 61.6% vol. Approximate UK price: around £190.
The profile changes more from one release to the next than the other expressions: the barley comes from the same field but each harvest differs, and with it the PPM and the malt character. It is the bottle most worth following year on year: it is also the one where terroir enters the profile most directly, which is uncommon for a heavily peated whisky at this age.
Octomore 16.4
The 16.4 shares the base of the 16.3 (189.5 PPM, Church Field barley) but takes a different maturation path: second-fill ex-bourbon casks first, then medium-toasted virgin French oak. Strength: 62.6% vol.
Distribution is limited: available only through Bruichladdich’s official e-commerce and directly at the distillery, which makes it harder to find than the other three. The price is comparable to the 16.3 or slightly above. The virgin oak adds tannins and structure not found in the other expressions, but can come across as drier and less balanced for those used to classic finishing styles.
In practice
Octomore is expensive for the age of the bottles: anyone looking for complexity from long maturation will find more elsewhere at the same price. What drives the price here is the peat and Bruichladdich’s production philosophy, not the years in wood. For the complexity that comes from long maturation, a Lagavulin 16 offers more: same price range, sixteen years in cask.
For anyone new to the series, the 16.1 is probably the most sensible choice: at around £140 it is the least expensive and shows the baseline profile without the influence of European wood. For those who are new to peated whisky more generally, the beginner’s guide to peated whisky is worth reading first.
For anyone who wants to understand what European wood does to the same distillate, the 16.2 is the direct comparison: same barley, same PPM, completely different casks. At around £150, the price difference from the 16.1 is modest.
If budget isn’t a concern, the 16.3 is worth the £190: higher PPM, a specific agricultural story behind each bottle, and the profile that changes most from one release to the next.
The 16.4 is for those who already know the series. Limited distribution makes it less accessible, and the virgin oak profile is the most unpredictable of the four.
The 16.1 is probably the best starting point for anyone new to Octomore. The 16.2 shows what European wood does to the same distillate. The 16.3 is the one worth tracking year on year. For a broader comparison across Bruichladdich’s range, the Bruichladdich Old Skool 10 sits at a very different point on the spectrum.
