The Charmat method, also called Martinotti method or tank method, is used for producing sparkling wines in large quantities by carrying out the second fermentation in large tanks instead of individual bottles. This method is cheaper and easier than the Méthode Champenoise and is not permitted for champagne, but it used to produce most Prosecco and other simpler sparkling wines.

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Synonyms:
Martinotti method, tank method
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