Mass-produced pizzas use, beside Mozzarella, non-Italian cheeses such as Edam, Emmental and Blue cheese. Other pizza cheeses include Emmental, Romano and Ricotta for calzones or as a topping. The cheese is often Emmental cheese or Appenzeller cheese. Traditionally made Emmental or Cheddar might contain 10% of the lactose found in whole milk. They discovered the bacterium while studying propionic acid fermentation in Emmental cheese. It is situated in the upper Emmental between Bern and Lucerne. The district of Fraubrunnen is divided between Emmental and Bern-Mittelland. SC Langnau Tigers are a professional ice hockey team from Langnau im Emmental, Switzerland. The Emmental also played a dominant role in the history of the Mennonites. The municipality is located in the Emmental. It is perhaps best known by foreigners and visitors for the Emmental. Langnau im Emmental has an area of . In 1804 the family home was moved to Utzenstorf, a village in the Bernese Emmental. Langnau im Emmental is home to the "Regionalbibliothek Langnau" library. Langnau im Emmental and lived there in 2000.