Emmentaler AOP Réserve is a cheese for connoisseurs. At the first quality control, suitable wheels are selected for further maturation to achieve the Réserve quality. These wheels are matured for at least eight months and carefully tended in special maturation warehouses. Maturation at a temperature of 11 to 14 °C and in an air humidity of over 90% (moist storage) gives them their distinctly tangy flavour. Emmentaler AOP Réserve also retails under other names that refer to the longer maturation period (e.g. Surchoix, Vintage, Mature, …).