IPC Definitions - January 01, 2012
C12G - Definition
This subclass covers:
Wine per se.
Processes used in the preparation of wine.
Other alcoholic drinks per se.
Processes used in the preparation of other alcoholic drinks.
Relationship between large subject matter areas
While subclass C12H deals with pasteurisation, sterilisation, preservation, purification, clarification, ageing of alcoholic beverages or removal of alcohol therefrom, subclass C12G includes deacidifying wine, preventing winestone precipitation or flavouring to simulate ageing.
In this subclass, it is desirable to add the indexing codes of subclass C12R.
References relevant to classification in this subclass
This subclass does not cover:
Beer; Preparation thereof | C12C |
Processes for removing alcohol to render alcohol-free or low alcohol drinks | C12H 3/00 |
Attention is drawn to the following places, which may be of interest for search:
Generic equipment and processes for separation of solids from liquids | B01D |
Generic distillation processes or apparatus | B01D 3/00 |
In this subclass, the following terms or expressions are used with the meaning indicated:
Dégorgeage | Process for removing yeast which has settled in the neck of a bottle or on a specially formed closure. |
Desulfiting | Process for the removal of excess sulfur dioxide. |
Fermentation | Process whereby yeast converts sugar to ethyl alcohol. |
Immobilized yeast | The yeast is absorbed on a static material instead of being dispersed throughout the liquid. |
Must | Juice extracted from grapes. |
Pompage | Pumping |
Sulfiting | Process for adding sulfur dioxide (SO2). |
Wine | This includes fortified wines such as Sherry, Port or Madeira, but does not include barley wine which is a synonym for beer used in older documents. |
Winestone | Crystals of potassium bitartrate precipitated from the wine. |
"Dégorgeage" and "degorgement" are the same process, dégorgeage is the term used in French, whilst degorgement is the term used in English. As a keyword "degorge" or "disgorge" are also used as verbs.
Agitation prior to removal of yeast is often termed "remuage".
In the context of removal of yeast, dead yeast is often known as "lees" or "sediment".
"Traditional method", "Champagne Method" and "Méthode Champenoise" are all the same method.
Other keywords for "winestone" are potassium tartrate, potassium bitartrate, cream of tartar, and, in older documents, wine diamonds.
"Low alcohol" in several countries has a legal meaning distinct from its usage here. "Reduced alcohol", "dealcoholized", "dealcoholized", are alternate keywords.
Sulfur and derivative words have an alternate spelling sulphur, e.g. "sulphiting", "desulphiting".