At Glenlivet the small 12 is the only value, even the litre isn't

How that is judged, in one breath. Each bottle is set beside the ten whiskies the model rates closest to it on flavour, and the middle of those ten prices is the rate the style is trading at this week. Think of it as the bottle's room. Glenlivet, the biggest-selling single malt in the United States and no stranger to a supermarket shelf, runs a middle price around $105, and makes a light, elegant, orchard-and-blossom Speyside style built for easy drinking. The question is which bottles carry that style at a fair price, and the answer is short.

The plain 12 is it. At $79 it sits about 7% under its room of roughly $85, the only Glenlivet this week asking less than its neighbours. This is the whisky the distillery is famous for, floral and soft, pineapple and orchard fruit, a little white pepper, a note of wood and rose. Underpriced against its company and genuinely good, it is the bottle to buy and barely needs defending.

Now the trap. The same 12 also comes as a litre, and the bigger bottle is the wrong buy. At $126 it works out to about $88 for every 700 millilitres, dearer by volume than the $79 you pay for the standard bottle, so the usual logic of buying the big one to save money is exactly backwards here. The model lines the litre up against drams sold in 700s and reads it at 40% over its room, which overstates the case because of the format; correct for size and it is still the pricier way to drink the same whisky. Buy two of the small bottles before you buy one of these.

The Founder's Reserve, the no-age-statement entry, is the other inexpensive option. At $70 against a room near $68 it is effectively level, a few percent over, and it tastes a touch rounder and sweeter than the 12, silky and creamy with caramel, almond and soft fruit. It does the job for the money. From there the range steps up and away. The 15, the French-oak one, is $153 against roughly $92, about 66% over; it is bright and spicy, apple and pear with a lick of soft spice and the house pineapple note, but you pay a long way over the room for it. The 18 is $250 against about $150, some 67% over, dried fruit and cedar with a nutmeg warmth, and the same verdict applies: fine whisky, steep price against its company.

The litre trap is worth dwelling on because it catches careful shoppers, the very people who think to check the per-litre maths on everything else in the trolley. With spirits the bigger format is not always the saving it looks like, and here it is the reverse of one. The distillery and the retailer are not doing anything underhand; the big bottle simply is not discounted enough to beat the small one on a per-dram basis this week. The lesson generalises: on a shelf where the same whisky comes in two sizes, do the division before you assume the litre wins.

So the picture is lopsided. One clear value, one level-priced entry alongside it, and then a jump to older bottles that all ask about two-thirds more than their rooms. For a brand this ubiquitous, that concentration of value in a single bottle is almost the point: the 12 is what Glenlivet is for, and the rest of the range is there for drinkers who have already decided they want more and will pay for it.

So, buying. For value and for drinking, the 12 at $79 is the only real answer, under its room and Glenlivet at its most recognisable; skip the litre and buy the small bottle twice over, because at about $88 a 700-worth the big one is the dearer pour. If you want something softer and even cheaper, the Founder's Reserve at $70 is a sound level-priced choice. The 15 at $153 and the 18 at $250 are for drinkers who want the extra age and are untroubled by paying well over the room for it; neither is a value play. On the numbers this week, the cheapest bottle on the shelf is also the smartest.

Glenlivet is easy to find and easy to drink, and the plain 12 is why. Everything else in the range this week asks you to pay for a bigger bottle or an older one, and neither is the bargain the small 12 quietly is.