These are total abstainers, who maintain that the use of stimulants is essentially sinful, and allege that the wine used by Christ and his disciples at the supper was unfermented.
They accordingly communicate in the unfermented "juice of the grape."
In the United States of America and Canada, in some portions of Europe and of Asia, and along the north of Africa, there is a free use made of green or unfermented teas with pale, pungent infusions.
The musts from which the Sauternes wines are made are so concentrated that only a part of the sugar is transformed into alcohol, an appreciable portion remaining unfermented.
As the character of a wine depends to a considerable extent on the nature of the yeast (see Fermentation), many attempts have been made of late years to improve the character of inferior wines by adding to the unfermented must a pure culture of yeast derived from a superior wine.