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Riddling
In the classic method of sparkling wine production, the riddling process is used to cause the sediment to fall to the cork after secondary fermentation. During this process, the bottles are positioned upside down at a 45° angle and gradually shaken, turned and the angle increased every couple of days until they are positioned straight downward and the sediment is ready for disgorgement.
Rootstock
The root stump of the vine on to which the fruiting branches are grafted.
