The Charmat method
(also called the "Italian Method") of producing sparkling wines is often used in the crafting of Prosecco.
This method forces the second fermentation to happen in a large stainless steel tank prior to bottling, rather than in the bottle like the traditional méthode champenoise. The Charmat method is a cheaper means for pushing a wine through second fermentation and is best used on sparkling wines that are meant to be consumed young and relatively fresh.
Also Known As: Italian Method, Metodo Italiano or Martinotti-Charmat Method