The Glenrothes 18 Year Old

Generally no. Speyside is known for producing predominantly unpeated single malts with fruit, floral, malt, and oak character, driven by its inland geography and the quality of its soft spring water sources. Benriach and Braeval produce occasional peated expressions as secondary style releases, and BenRiach Curiositas and Smoke Season carry a noticeable peat character. However, the defining Speyside style, as exemplified by Glenfiddich, Macallan, Balvenie, and Dalwhinnie, is unpeated and fruit forward.

Yes, meaningfully. The Speyside region sits within the broader Highland designation but has its own distinct style driven by specific geography, water sources, and a concentration of prestigious distilleries. Highland whiskies, from distilleries outside Speyside such as Dalmore, Glenmorangie, Clynelish, and Old Pulteney, tend toward heavier, spicier, more robust character with greater variation by sub region. Speyside is more consistently lighter, fruitier, and more floral, with the River Spey watershed providing the unifying geographic factor.

Some Speyside distilleries use water from the River Spey or its tributaries, but many use independent spring water sources within the broader Speyside area rather than water drawn directly from the river. Glenfiddich uses the Robbie Dhu Spring, Glenlivet uses water from Josie's Well, and The Macallan draws from its own spring on the Easter Elchies estate. The quality and mineral content of the local spring water is consistently cited as a significant factor in the house character of Speyside single malts.