Which beer is known for having an IBU of 5-12?

The Gose style of beer is characterized by a low bitterness, typically falling within the IBU range of 5-12. This low level of bitterness allows the unique flavors of the style to shine through, particularly the tartness and the blend of coriander and salt. Gose is a historically significant German style that often includes a refreshing acidity, which combines beautifully with the subtle malt sweetness, thus making it an appealing choice for those who prefer a less bitter beer experience.

In contrast, the other styles mentioned typically have higher IBUs. London Brown Ales are known for their malty profiles but can have moderate bitterness levels, often higher than those found in Gose. Belgian Dark Strongs feature rich malt complexity and can also reach higher IBU levels due to the incorporation of darker malts and potential hop bitterness. Roggenbier, a rye-based beer, offers distinctive spiciness that can lead to moderate bitterness as well. Hence, Gose stands out for its inherently low IBU, making it the correct choice for this question.