Brewer's yeast.
Yeast was used to ferment wine beer and vinegar.
You want to completely ferment the beer. It's possible to incompletely ferment (exploding bottles) but not over ferment since you want the yeast to eat as much as they can of the sugar.
In order to produce a strong beer, you have to let the mixture ferment at the right temperature.
The yeast is used in beer-making to ferment the sugars that are contained in the sweet liquid called wort or beer that isn't fermented yet. If no yeast was introduced to the wort, none of the sugars would ferment into alcohol. In short, it makes the alcohol. Ha ha Is that true? I dont believe it!
No, it will just get moldy.
Since this is posted in "Beer and Brewing" I can only assume you mean, the large glass jugs used by homebrewers to ferment beer. Those are called carboys.
Yes, beer can ferment for too long, which can result in off-flavors and a less desirable taste. It is important for brewers to monitor the fermentation process carefully to achieve the desired flavor profile.
Yes, you can over ferment beer by allowing the yeast to continue fermenting for too long. The potential consequences of over fermentation include off-flavors, excessive alcohol content, and a thin or watery mouthfeel in the beer.
Barley & hops are some of the flavours added to beer, but the basic malted wort can be made with any grain that has enough starch to ferment; wheat, barley, rye, etc.
One crucial enzyme used in beer making is amylase, which breaks down starches in grains like barley into sugars that yeast can ferment into alcohol. Another important enzyme is protease, which helps break down proteins in the grain to aid in yeast metabolism and beer flavor development.
Penicillium chrysogenum: Used to produce the antibiotic penicillin, which is effective against many bacterial infections. Saccharomyces cerevisiae: Used in baking to ferment dough and produce bread, as well as in brewing to ferment beer and wine.
Bottom fermented beer is a type of beer that is brewed using yeast strains that ferment at colder temperatures and settle at the bottom of the fermentation vessel. This process typically results in a cleaner and crisper taste. In contrast, top fermented beer is brewed using yeast strains that ferment at warmer temperatures and rise to the top of the fermentation vessel, resulting in a more complex and fruity flavor profile.