Glenfarclas began issuing a standing 50 Year Old several years ago, a remarkable commitment for any distillery. It depends entirely on the family's foresight in laying down casks during the 1950s and 1960s, when demand for heavily aged single malt was modest and warehousing was comparatively cheap. Those decisions, taken by previous generations of Grants, underwrite the whisky one tastes now.
A spirit that has spent fifty summers and winters in cask has been through an enormous amount of interaction with wood. The alcoholic strength has drifted downward toward the legal minimum, concentration has intensified, and the sherry influence has settled from bright wine notes into something closer to old leather, tobacco and dried dark fruits. The bottling strength here sits just above 41%, which is normal for whisky of this vintage.
The risk at fifty years is always that the oak smothers the spirit. At Glenfarclas the new-make is weighty enough, and the stills traditional enough, to give the whisky the backbone it needs to survive that long in wood. The result is contemplative drinking: not a dram to analyse over ice, but one to sip slowly, preferably alone and in no hurry.
A whisky of this age and provenance is, inevitably, expensive. It is also one of the few standing 50 year old single malts produced by a family-owned Speyside distillery.