Bottom Fermenting Beers (Lagers) Flashcards
What is the name of the Yeast for Lager beers?
Saccharomyces Pastorianus
Generally, are lagers considered “Botton Fermenting” or “Top Fermenting”?
Bottom Fermenting, at lower temperatures.
Lagers are usually fermented at what range of temperature?
42 - 55 F
What are lagers called lagers?
Lagern, which means “to store” in German.
And because Lagers are usually matured after fermentation on the yeast cells for several weeks.
What is the purpose of Lagering?
The maturation of the lagers on the yeasts gets rid of unwanted flavor and aroma. The unwanted qualities are absorbed by the yeast and transformed.
The yeast than settles to the bottom leaving the lagers clean and clear.
Give an example of 6 different bottom fermented (Lager) styles.
- Bock/Dopple-bock
- Vienna Lager
- Rauchbier
- Czech Pilsner
- Maibach
- American Lager
What is a Kolsch beer?
Kolsch is a top fermented beer specifically made in Cologne, Germany.
It is characterized by its lightly fruity yeast note in aroma and taste and a balanced hoppy bitterness.
Served traditionally in a Stangen glass.
What does “Vollbier” indicate on a bottle of German beer?
The term Vollbier is simply used to mean “regular beer”, distinguishing it from beers that are particularly light or strong in alcohol.
What does “Leichtes” mean in a bottle of german beer?
Leichtes means lighter in alcohol and the term can be added before any style of beer.
eg: Leichtes Weissbier
Why do most lagers have a similar flavour and aroma profil?
Because the yeast Sacharomyces Pastorianus are not as genetically diverse as ale yeasts. As a concequence lager beers tend to have rather similar aroma and flavour profile whem compared with ales.
Why does Saccharomyces Pastorianus tend to perform at the bottom of the fermentation tank?
Saccharomyces Pastorianus tends to gravitate towards the bottom of a fermenting tank because its consumption of Disaccharide Melibiose Sugar at lower tempratures.
