Ouzo Ouzo Ouzo (, ) is a dry anise-flavoured aperitif that is widely consumed in Greece, Cyprus, Lebanon and Israel. Its taste is similar to other anise liquors like "rakı", pastis and sambuca. Ouzo has its roots in "tsipouro", which is said to have been the work of a group of 14th-century monks on Mount Athos. One version of it was flavoured with anise. This version eventually came to be called ouzo. Modern ouzo distillation largely took off in the beginning of the 19th century following Greek independence. The first ouzo distillery was founded in Tyrnavos in 1856 by Nikolaos Katsaros,
Flavour (particle physics) by non dynamical, discrete quantum numbers. In particular, the action of the weak force is such that it allows the conversion of quantum numbers describing mass and electric charge of both quarks and leptons from one discrete type to another. This is known as a flavour change, or flavour transmutation. Due to their quantum description, flavour states may also undergo quantum superposition. In atomic physics the principal quantum number of an electron specifies the electron shell in which it resides, which determines the energy level of the whole atom. Analogously, the five flavour quantum numbers (isospin, strangeness, charm, bottomness or