Established in 1971 on the grounds of the Glenlossie Distillery by Scottish Malt Distillers, Mannochmore was built to support the company's popular blended whiskies. After being mothballed during the 1980s whisky recession, it was fortunately reopened a few years later in 1989 and has been a significant part of the Speyside whisky landscape ever since. Now under Diageo's ownership, Mannochmore's spirit is a key component in many Johnnie Walker blends enjoyed worldwide.

Uniquely, Mannochmore shares its workforce with its sister distillery Glenlossie, making it one of only a few such pairings in Scotland, with Springbank and Glengyle in Campbeltown being another notable example. The combined warehouse facilities at Mannochmore and Glenlossie are quite impressive, capable of holding over 200,000 casks.

An intriguing piece of Mannochmore's history is that its distillate was used to create Loch Dhu, the infamous black whisky from the 1990s. Although initially met with skepticism due to its intense color from heavy caramel use, Loch Dhu has now become a sought-after whisky among collectors, commanding high prices at auctions and specialty retailers.

At just over 50 years old, Mannochmore is still a modern distillery by Scottish standards, and it continues to employ advanced distillation techniques. Notably, a dark grains plant was built alongside the distillery. This facility processes spent grains from nearby Diageo distilleries into cattle feed, a significant shift from the past when local farmers would collect the draff directly. Furthermore, in 2012, a biomass burner was installed to handle production by-products not suitable for animal feed. These operations highlight the industry's growing focus on sustainability.

While Mannochmore is only occasionally bottled as a single malt under Diageo's Flora and Fauna series, independent bottlings are highly regarded by enthusiasts. Its light and fruity character makes it a favorite among many whisky lovers.