The Rare Malts Selection from Diageo has long held a particular fascination for serious collectors and drinkers alike. These were bottlings drawn from distilleries across Scotland, often at cask strength, and released with minimal intervention — no chill-filtration, no added colour, and frequently at eye-watering ABVs that revealed exactly what the distillery character was doing inside those casks. The Benromach 1978, bottled at 19 years old and a formidable 63.8% ABV, is one of the more sought-after entries in that series, and having spent time with a glass of it, I understand why.
This is a Speyside whisky from an era before Benromach's revival under Gordon & MacPhail in 1998. The 1978 vintage captures something that no longer exists in quite the same form — the spirit produced during the distillery's earlier operational chapter, before the stills fell silent and before the character of the make was reshaped by new ownership. That alone makes it a compelling proposition for anyone interested in what Speyside whisky looked like in a different decade, under different hands.
What to Expect
At 63.8%, this is not a whisky that reveals itself immediately. It demands patience. A few drops of water are not optional here — they are essential to unlocking whatever this cask has to offer. Cask-strength Speyside malts from this period tend to carry a weight and intensity that can surprise those accustomed to the lighter, more floral modern Speyside profile. Nineteen years in wood at this strength suggests the cask had real influence, and the spirit retained serious backbone throughout its maturation.
The Rare Malts series has a well-earned reputation for bottling whiskies that feel honest. There is no marketing polish here, no attempt to smooth the edges. What you get is a direct window into what was happening at a specific distillery, in a specific year, drawn from a specific cask. That transparency is increasingly rare and increasingly valuable.
The Verdict
At £800, this sits in collector territory, and I won't pretend otherwise. But unlike many bottles at this price point, the Benromach 1978 Rare Malts has genuine substance behind the figure. The combination of a pre-revival distillate, cask-strength bottling, and the credibility of the Rare Malts series gives it a provenance that justifies serious consideration. I score it 8.3 out of 10 — a reflection of both the quality of what is in the glass and the historical significance of what it represents. This is not a whisky you drink casually. It is one you sit with, add water to slowly, and pay attention to. It rewards that attention.
Best Served
Neat, with a pipette or teaspoon of still water added gradually. At 63.8% ABV, the water is doing real work here — it is not a concession, it is part of the experience. A Glencairn glass will concentrate the aromas and give you the best chance of appreciating what this cask-strength Speyside has to say. Give it fifteen minutes in the glass before forming any opinions. Whiskies of this age and strength change constantly as they open up, and the first sip is rarely the most revealing.
