The fermenting procedure for a fine London Dry Gin like Gilbey's is identical to that of whiskey. The primary distinction is the lack of congeners, or natural flavor ingredients, which are so important in Bourbon and Scotch. Instead, the flavor of gin is imparted to the alcohol while it is still vaporized and forced to pass through a "filter" of juniper berries, herbs, and spices.
The nose is classic with plenty of junipers, with orange zest and angelica present as well. The lower notes have the bright, sappy, angelica still accompanied by the orange. The nose is simple but familiar and inviting. I don’t think I would guess the price by the nose. It’s fresh and generally quite positive.
The palate is assertive and sharp, with lots of classic gin botanicals making an appearance: pine-forward juniper, bitter orange rind, coriander mid-palate— surprisingly obvious for a second and then quickly vanishing from consciousness— the finish is sharply citrus with a mineral-tinged, calciferous/slightly chalky astringency. Quite dry, with a roar of heat that is more expected at this price point.
The finish is moderately long, with that orange/citrus note enduring.