Mutage

Mutage /ˈmjuːtɪdʒ/ MEW-tij is a wine making technique for making sweet wines.

Typical mechanism

The typical process involves the addition of alcohol to the must so that the fermentation process is prematurely stopped. Most yeasts die when the alcohol content in their environment is raised to approximately 13–15%. By stopping the fermentation of sugars, a sweet taste of the wine is achieved. This technique is used to make port wine and other sweet wines with high alcohol content.[1][2]

Types of mutage

Two types of mutage are sometimes distinguished. A distinction being made between adding alcohol to the must before fermentation and adding during fermentation.

  1. Mutage sur grain: Where the mutage takes place during maceration on the skins. This is described as mutage on the cap of the marc and produces vin de liqueur
  2. Mutage after the traditional maceration and pressing producing vin doux naturel.

Noted wines referred to as having been made by mutage

Reds

Whites

Other techniques

Other techniques for making sweet wines exist such as vendange tardive, the noble rot, various filtration techniques or early heating of the must, and adding sweet musts after fermentation.

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See also

References
  1. The Wine Doctor website /Wine Features/Sweet Wine/Sweet Wine: Vin Doux Naturel Archived 17 February 2009 at the Wayback Machine Accessed 16 September 2010
  2. www.muscats-du-monde.com Accessed 16 September 2010
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