Nestlé Nespresso S.A., trading as Nespresso, is an operating unit of the Nestlé Group, based in Vevey, Switzerland. Nespresso machines brew espresso and coffee from coffee capsules, a type of pre-apportioned single-use container, or reusable capsules (pods), of ground coffee beans, sometimes with added flavorings. Once inserted into a machine, the capsules are pierced and processed. Water is then forced against a heating element at high pressure meaning that only the quantity for a single cup is warmed. By 2011 Nespresso had annual sales in excess of 3 billion Swiss francs. The word Nespresso is a portmanteau of "Nestlé" and "Espresso", a common mechanic used across other Nestlé brands.