ja! Reine Buttermilch

ja! is the widely recognized store brand of the REWE Group, one of Germany's leading retail and tourism cooperatives. This 'Reine Buttermilch' (pure buttermilk) is a classic dairy staple marketed under their discount private label, which was originally launched in 1982 to provide high-quality basic goods at lower prices.

While the brand is owned by the REWE Group headquartered in Cologne, the manufacturing of dairy products like this buttermilk is typically outsourced to various regional German dairies (such as Müller or DMK), which utilize high-standard local production facilities. The brand remains a cornerstone of the German retail landscape, representing value-oriented consumption within the REWE, Penny, and Toom store networks.