Which beer style typically has an SRM of 25-40?

The beer style characterized by an SRM (Standard Reference Method) of 25-40 is the Imperial Stout. This style is known for its deep, dark color that can range from dark brown to nearly black, typically leading to an SRM well within this range. Imperial Stouts are also recognized for their rich, roasted malt flavors, which contribute to the deep color as well as complex aromas and tastes, including chocolate, coffee, and various dark fruits.

The SRM scale measures the color intensity of beer, with higher values indicating darker beers. Imperial Stouts commonly achieve those high SRM values due to the use of roasted malts and specialty grains that impart both color and flavor.

In contrast, the other styles listed generally have lighter SRM values. For instance, American Brown Ales are typically in the 18-30 SRM range, while American IPAs generally fall between 6-15 SRM. Black IPAs may reach higher SRMs compared to classic IPAs but still do not usually extend to the upper range of 25-40 SRM, as they are not as intensely dark as Imperial Stouts.