What additional ingredient is commonly used in Sweet Stouts to enhance mouthfeel?

The addition of lactose in Sweet Stouts plays a crucial role in enhancing mouthfeel and depth of flavor. Lactose, a non-fermentable sugar derived from milk, contributes to a creamy, smooth texture that is characteristic of this style of beer. Unlike other sugars that yeast can ferment, lactose remains in the beer, adding body and sweetness without increasing alcohol content.

This richness enhances the overall drinking experience, making Sweet Stouts feel fuller and velvety on the palate. The presence of lactose also complements the dark malt flavors typically found in Sweet Stouts, such as chocolate and coffee, rounding out the beer's profile.

Other ingredients, while they may impact flavor in various ways, do not specifically target mouthfeel in the same manner as lactose does. Honey may add sweetness and complexity, barley is a foundational grain used for fermentation, and corn syrup is primarily utilized as a fermentable sugar without particularly affecting the mouthfeel in the same way lactose does. Therefore, lactose stands out as the key ingredient for enhancing mouthfeel in Sweet Stouts.