Charmat
/ˈʃɑːmɑː/ /ˈʃɑːmat/Winemaking
noun
An inexpensive method of producing sparkling wine, by which the wine receives a second fermentation in large tanks rather than (as with champagne) in individual bottles. Chiefly attributive Compare méthode champenoise.
Origin
1930s; earliest use found in The New York Times. From the name of Eugène Charmat, French chemist who developed such a process 1907.