Whisky age statements are reassuringly simple. A 12-year-old whisky has spent at least 12 years in a cask. An 18-year-old has spent at least 18 years in one. The bigger number generally costs more, looks more impressive on the shelf and gives you something useful to mention while pouring it for guests.

But does older automatically mean better?

Not necessarily. The cask, the strength, the use of peat and the general dark magic performed inside a Scottish warehouse can all make as much difference as the number printed on the bottle.

Glen Moray has been making whisky beside the River Lossie in Elgin since 1897, using a broad range of casks to produce its generally light, fruity Speyside style.

To demonstrate that age is only part of the story, we tried four whiskies from its Heritage Range: the classic 12 Years Old, Smoky 12, 15 Years Old and 18 Years Old.

It’s the sort of experiment we’re willing to endure on your behalf.

Glen Moray 12 Years Old

The regular 12-year-old is the sensible one of the family. It probably owns an iron, knows where its passport is and has never woken up on a sofa wearing one shoe.

Matured entirely in American oak casks, it delivers plenty of vanilla, soft fruit, toasted oak and gentle toffee sweetness. It’s smooth, light and very easy to drink, without feeling the need to shout about how complex it is.

At 40% ABV and £46.50, it’s the cheapest bottle here and the obvious starting point for anyone who wants to explore single malt without first studying a flavour wheel.

Glen Moray Smoky 12

The Smoky 12 is what happens when the sensible sibling buys a leather jacket and starts standing beside bonfires.

It carries the same 12-year age statement as the standard bottle, but brings peated malt and different cask influences into the mix. The result is noticeably smokier, with vanilla, caramelised apple and baked plum underneath.

Importantly, it isn’t one of those whiskies that tastes as though somebody has dissolved a Victorian hospital into your glass. The peat is gentle, warm and more reminiscent of fading embers than an industrial accident, and helps to bring out the sweetness of the dram.

At 46.3% ABV, it has more punch than the standard 12, and it’s non-chill filtered. The recommended price is £52.75, which looks reasonable for the extra character.

Of the four, this is probably the one with the most immediately obvious personality.

Glen Moray 15 Years Old

The 15-year-old is split between American oak and oloroso sherry casks, giving it a richer and slightly more indulgent character.

There’s still vanilla and oak, but now they’re accompanied by dried fruit, butter toffee, mixed spice and dark chocolate. It’s reached the whisky equivalent of owning a decent dinner jacket and knowing which fork to use.

It’s fuller and more layered than the two 12-year-olds, but remains approachable at 40% ABV. The sherry influence is clear without turning it into liquid Christmas cake.

At £61.75, it’s also not a massive leap from the Smoky 12, making it an appealing choice for anyone who prefers richer, sweeter whisky over peat.

Glen Moray 18 Years Old

The 18-year-old is the serious one.

It’s spent its life in first-fill American oak casks, which, as the name suggests, haven’t previously been used to mature another single malt. That allows the whisky to absorb more flavour from the wood, including vanilla, oak, caramel and toffee.

There’s also treacle, sweet fruits, spiced apple and raisins in the flavour mix, followed by a long, lightly smoky finish.

At 47.2% ABV, it has noticeably more weight and intensity than the standard 12 or 15. It feels richer, deeper and more expensive, which is fortunate because it costs £93.

This is the bottle you put somewhere visible before friends arrive, but then pour from the 12-year-old.

Does older whisky taste better?

The 18-year-old is undoubtedly the richest and most substantial of the four. The extra time in first-fill oak has given it greater depth, intensity and the sort of finish that hangs around long after you’ve swallowed.

But that doesn’t make it the automatic winner.

“Age is very often the most important factor when it comes to choosing a whisky for yourself or as a gift, as an indicator of years of maturation and quality,” explains Glen Moray global brand ambassador Iain Allan.

“However, I’d urge people to look behind the number and think about how that time in cask has influenced the spirit; the wonderful flavours and notes that you can look forward to nosing and tasting, and the incredible depth and complexity that age can bring.”

The Smoky 12 offers the biggest change in character, despite sharing its age statement with the standard bottle. The 15-year-old may suit anyone who likes darker fruit and sherry flavours, while the regular 12 remains an easy, uncomplicated dram that doesn’t require a special occasion.

And that’s really the point of the tasting. Age matters, but it isn’t a whisky quality score.

Sometimes the younger, smokier and slightly less responsible option is simply more fun.

Phil Huff