In short: Single malt whisky is made from 100% malted barley at one distillery. “Double malt” isn’t an official category — it usually refers to a blend of two single malts from different distilleries.

If you glance at the label of any bottle of whisky, you are sure to spot a variety of descriptors that tell you about the type of whisky that’s in the bottle. 

There’ll be the brand or distillery name, the alcohol content, and perhaps an age statement or whether it’s cask strength. If it’s a scotch whisky, it may also tell you which of the whisky regions of Scotland it comes from. Take a look at any bottle from The Glenlivet’s Distillery Reserve collection, for instance, and you’ll see that we proudly include that it’s produced in Speyside.

And then there are the whisky types or categories to distinguish between too. Single malt. Double malt. Blended whisky. But what do these terms mean? When it comes to single malt vs double malt, what’s the difference? Well, we’ve written this article to help clear things up so that when you next find yourself seeking a delectable dram, you’ll know exactly what whisky’s what.

To truly look at the differences in the single malt vs double malt showdown, it’s useful to understand how each type of whisky is produced.

The main differences are:

• Single malt whisky is made at one distillery using only malted barley
• “Double malt” typically refers to a blend of two single malts from different distilleries
• Double malt sits within the broader category of blended malt whisky
• Single malts tend to reflect the character of one distillery, while blended styles aim for balance and consistency

Single malt whisky is made from pure malted barley at a single distillery, although it can be derived from multiple casks. The production involves mashing the barley, fermentation, distillation, and ageing in oak casks for a minimum of three years. The distinctiveness of single malt whisky comes from using only one type of grain and the unique characteristics of the distillery’s equipment and geographical location.

Learn more about double and single casks.

“Double malt” isn’t an official whisky category. It’s an informal term sometimes used to describe a blend of two single malts from different distilleries. In most cases, this would fall under the broader category of blended malt whisky. 

As the name suggests, blended whisky is a mix of whiskies from different distilleries, and it makes up the majority of Scotch whisky production. Producers carefully meticulously combine various whiskies to create a consistent flavour. While distilleries can only use malted barley for single malt whisky and it must come from just one distillery, blended whiskies can be made by combining malt whisky with another grain whisky such as corn, rye or wheat, two or more grain whiskies or two or more single malt whiskies, hence why double malt varieties fall into this category.

So, in summary, a single malt whisky is made at one distillery solely from malted barley whereas double malt is a form of blended whisky made by combining single malt whiskies from different distilleries.

The flavour of a whisky is shaped by a wide range of factors — from ingredients and fermentation to cask type and maturation. But the way a whisky is made also plays a key role in how it tastes.

Single malt whisky flavour

Single malt whisky reflects the character of one distillery. Made from malted barley, it showcases the influence of that distillery’s process, water source and location.

As a result, single malts often feel more distinctive and layered. Depending on the expression, you might notice notes of vanilla, oak, spice, dried fruit or smoke — all shaped by how and where the whisky was made.

Regional influence

Where a whisky is produced can have a noticeable impact on flavour. Across Scotland, different regions are known for different styles.

For example, Islay whiskies are often bold and peaty, while Speyside whiskies — like The Glenlivet — are typically smoother and more fruit-forward. These regional characteristics add another layer of variety when exploring single malts. Learn more about Speyside vs the Highlands, another popular whisky region.

Double malt and blended whisky flavour

With double malt — or blended malt whisky — flavour depends on the combination of whiskies used. Each single malt brings its own character, and the aim is to create a balanced, harmonious profile.

Blended whiskies that include both malt and grain spirits tend to be lighter and more approachable. Grain whisky adds smoothness, while malt whisky contributes depth and complexity, resulting in a well-rounded and versatile style.

In general, single malt whiskies tend to be more expensive than blended whiskies. Single malts are produced at a single distillery using 100% malted barley, and as already mentioned, they often carry unique characteristics associated with that distillery’s production methods and location. The production of single malt whisky is typically smaller in scale and uses higher quality grain, with the resulting whisky being limited in supply.

Blended whiskies including double malt varieties, on the other hand, combine whiskies from different distilleries. They may use lower-quality grain and incorporate younger and less expensive whiskies.

When it comes to how to drink whisky, be it single malt, double malt or blended, it’s really a matter of personal preference and finding the way you enjoy it most. However, here are some general guidelines for getting the most from your dram:

Using the right types of whisky glasses can make a difference. A tulip-shaped glass, like a Glencairn glass, will help concentrate the aromas and enhance the tasting experience of a single malt. Blended whiskies are often more forgiving when it comes to glassware choice.

Many enthusiasts prefer to enjoy single malt neat to savour its flavour. However, adding a few drops of water can sometimes unlock new characteristics, especially in higher-proof whiskies. The same can be said for blended whisky. Serving your whisky on ice or with a splash of H2O can provide a different experience and an even more mellow taste.

If drinking your single malt neat, take small sips and allow the whisky to coat your palate. This allows you to appreciate the complexity and nuances of the single malt.

Serving single malt at room temperature or slightly below allows the flavours to develop. Avoid serving it too cold, as it can mute the aromas and flavours.

Single malts, double malts and blended whiskies can all be enjoyed with a variety of foods. Whisky chocolate pairing is a common practice, and the spirit is also complemented by cheeses and dried fruits.

Due to their balanced and consistent profiles, blended whiskies make excellent bases for cocktails like highball drinks, or smoky cocktails. But don’t overlook single malts for creating tasty serves. Classic cocktails such as an Old Fashioned or simple Scotch Mule offer something different while still letting the character of the whisky shine through.

The answer to this question comes down to your own individual taste. Both types have their merits and while some appreciate the distinctiveness of single malt whiskies others like how double malts can harmonise offerings from different distilleries.

If you want to explore the diversity of single malt whiskies, The Glenlivet has plenty of expressions to choose from. Our Founder’s Reserve smooth scotch whisky, for example, is a tribute to the man who started it all, George Smith and exhibits classic flavours against a creamy, smooth texture. And we also have a range of aged whiskies, including our 25-year-old single malt.  

To learn more about the wonderful complexities of whisky, check out our whisky guide and how to store whisky. Be sure to also browse our whisky cocktails for inspiration for your next pour.