A medium-strength English-style stout made with 5–15% oats in the grain bill, lending a silky, almost creamy mouthfeel alongside the usual roasted malt, chocolate, and mild coffee character. Typically 3.8–6% ABV. Less sweet than a sweet/milk stout, less roasty than a dry stout — defined by texture as much as flavor.
In the glass
Origin
A historical English style popular in the late 1800s that had died out by the 20th century — the last surviving oatmeal stout was brewed before World War I. Beer writer Michael Jackson’s 1977 World Guide to Beer mentioned the defunct Eldridge Pope ‘Oat Malt Stout’, which prompted Seattle importer Charles Finkel of Merchant du Vin to commission Samuel Smith’s brewery in Yorkshire to re-create the style. Samuel Smith’s Oatmeal Stout, first brewed in 1980, became the modern template that other breweries followed.
Notes
Oatmeal stout is defined by texture as much as flavor — the oats (typically 5–15%, occasionally up to 20%, of the grist) contribute beta-glucans, lipids, and proteins that produce a silky, full mouthfeel without adding much sweetness. It sits between dry stout (sharper, drier) and sweet/milk stout (overtly sweet from added lactose) on the stout spectrum. American craft examples sometimes push hop bitterness higher than English originals, but the classic template is moderately bitter, smooth, and roast-forward without being harsh.
Defining examples
Samuel Smith’s Oatmeal Stout·Bell’s Kalamazoo Stout·Young’s Oatmeal Stout·Anderson Valley Barney Flats