Biology · Microbes in Human Welfare · NEET
All of them use the SAME yeast, Saccharomyces cerevisiae. When this yeast is used for beverages it is called brewer's yeast. The same species is used for bread-making, where it is called baker's yeast. So one yeast, two common names, based on its use.
Wine and beer are produced WITHOUT distillation. Whisky, brandy and rum are produced WITH distillation of the fermented broth. NEET often asks this exact split, so remember: only 2 drinks (wine, beer) skip distillation.
Yeast ferments malted cereals (like barley) and fruit juices (like grape juice). Through fermentation the sugars are converted into ethanol (alcohol) and CO2 under anaerobic conditions.
Two things decide it: (1) the type of raw material used for fermentation, and (2) the type of processing, meaning whether distillation is done or not. Different raw material plus with/without distillation gives different alcoholic drinks.
No. Toddy is a traditional drink of some parts of southern India made by fermenting sap from palms. It is a fermented (not distilled) traditional drink and is mentioned separately from wine, beer, whisky, brandy and rum.
Try the real previous-year questions from this chapter — each with the answer and a full solution.
The yeast Saccharomyces cerevisiae, commonly called brewer's yeast, is used for all of these beverages.
Wine and beer are produced without distillation. Whisky, brandy and rum are produced by distillation of the fermented broth.
The yeast converts sugars in malted cereals and fruit juices into ethanol (alcohol) and CO2 under anaerobic conditions.
No. Both are the same species, Saccharomyces cerevisiae. It is called brewer's yeast when used for beverages and baker's yeast when used for bread-making.
NEET frequently asks the with/without distillation split and the single yeast used, so remembering wine and beer are undistilled while whisky, brandy and rum are distilled scores easy marks.
