Belper hirn is a Swiss soft cheese made from cow’s milk, named after the town of Belp in the canton of Bern. The name translates to "Belp brain," referring to its shape and the mold layer that develops during ripening. The cheese ages for 1 to 6 weeks, with the mold layer forming over time.
In the early stages, the inside remains fresh, while the mold begins to develop. By four weeks, the mold is more pronounced, and after six weeks, it is fully formed. Traditionally made from raw cow’s milk, Belper Hirn has a soft texture and is primarily known in the Belp region.