Malt-forward and lightly smoky. Where English bitter is dry, Scottish ale is sweet. Strong versions (Wee Heavy) cellar like barleywines.
Reference specifications from the BJCP Beer Style Guidelines (2021 Edition), styles 14A Scottish Light, 14B Scottish Heavy, 14C Scottish Export:
Competition reference ranges, not limits — commercial examples vary. Source: BJCP Beer Style Guidelines, 2021 Edition.
Scottish ales split into two camps: standard Scottish (60/-, 70/-, 80/- shillings) under 5% ABV, and Wee Heavy / Strong Scotch Ale at 7-10% ABV. The standard versions ride the English-ale curve (4-6 month freshness). Wee Heavy ages like a barleywine — caramel and toffee character deepens, slight oxidation produces sherry-like notes that complement the style. The traditional small smoke-malt addition (~1% peated malt) gives subtle character that holds up well.
Standard Scottish: cool storage, drink within 6 months. Wee Heavy: cellar at 55°F for years. Some Wee Heavies (Founders Backwoods Bastard, Oskar Blues Old Chub) come bourbon-barrel-aged and can age 3-5 years gracefully.
Standard Scottish: within 4-6 months. Wee Heavy: within 1-2 years for fresh malt character; 3-5 years for evolved sherry/oxidation notes. Some drinkers prefer the older versions.
These breweries either specialize in Scottish Ale or produce notable examples:
Freshie