Highlights
Disgorgement is the removal of sediment, or lees, from a sparkling-wine bottle.
In the traditional method, a second fermentation takes place in the bottle. The spent yeast and other sediment remain in the bottle while the wine ages on its lees. Before the wine is finished, this deposit is gathered in the neck and removed during disgorgement.
The process helps ensure the wine is clear. It is not the same as riddling, which gathers the sediment, or dosage, which is a separate finishing addition that may follow.
The traditional-method sequence
A simplified version of the process is:
- Tirage: yeast and sugar are added before bottling to begin the second fermentation.
- Secondary fermentation: the wine ferments in the bottle, creating alcohol, carbon dioxide and spent yeast sediment.
- Lees ageing: the wine remains in contact with this sediment.
- Riddling: the bottle is gradually rotated and tilted so the sediment collects in the neck.
- Disgorgement: the sediment is removed.
- Dosage and closure: a separate finishing addition may be made before the bottle is sealed for sale.
That sequence applies to the traditional method. Not every sparkling wine is made this way, so not every sparkling wine undergoes disgorgement.
How is disgorgement done?
Disgorgement may be performed manually or mechanically. In one widely used approach, the bottle neck is chilled so the sediment forms a removable plug. When the temporary closure is removed, pressure inside the bottle helps expel the plug.
Freezing the neck can make the process easier, but it is a technique used to facilitate disgorgement—not the meaning of the word itself. Exact equipment and handling vary with the producer, scale and product.
Disgorgement compared with similar terms
These terms describe different stages:
- Tirage is the addition of yeast and sugar used to initiate the second fermentation.
- Secondary fermentation is the fermentation that takes place in the bottle and creates pressure.
- Lees ageing is the period when the wine remains in contact with its sediment.
- Riddling gathers the sediment in the bottle neck.
- Disgorgement removes that sediment.
- Dosage is a separate addition after disgorgement that may replace lost volume and help establish the finished wine’s composition or style.
A useful memory aid is: riddling moves the sediment; disgorgement removes it; dosage finishes the wine.
What does “disgorged” tell you?
If a producer mentions that a wine has been disgorged, you can understand it as information about a production step: sediment has been removed from the bottle.
You should not automatically read it as a promise that the wine was disgorged recently, is fresher, is older, is higher quality or will have a particular sweetness. The word also does not tell you the dosage level by itself.
For Australian drinkers, the term is most relevant when reading about traditional-method sparkling wine. Australian sparkling wine is also made using other methods, including tank, transfer, ancestral and carbonation methods. Wine Australia notes that “traditional method” is understood as a description in Australia but is not itself a regulated term. That is another reason to treat production language as useful context rather than a standalone quality guarantee.
Frequently asked questions
Does disgorgement add sugar to sparkling wine?
No. Disgorgement removes the sediment. Dosage is the separate step that may follow and can include a finishing liquid.
Does all sparkling wine need disgorgement?
No. Disgorgement is particularly associated with the traditional method. Other sparkling-wine methods may not use the same bottle-fermentation and sediment-removal sequence.
Does disgorgement make a wine better?
It removes sediment and helps produce a clear wine, but the word alone does not guarantee quality, freshness or ageing potential.