PSB3444 MODULE 5 ALCOHOL QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
How is alcohol made? - ANSWER Alcohol is produced by the processes of
fermentation and distillation
- ethanol is the type that we drink
Fermentation - ANSWER the production of alcohol from sugars through the
action of yeasts
- forms the basis of all alcoholic beverages
- yeasts ferment until they can no longer feed (when the concentration of ethanol
reaches 12-15% the yeast dies and fermentation ceases)
What are the sources of fermentation? - ANSWER - sugar from fruits
- grains for beer
Beer - ANSWER - made by adding barley malt to other cereal grains
- hops are added with yeast to give its distinctive flavor
- each type uses a different kind of yeast, a different temperature, or different
timing during fermentation to each type
Wine - ANSWER - made from fermented grapes
- most wines contain about 12% alcohol
- factors in quality include: selection and cultivation of grapevines, weather, time
of harvest, careful monitoring of fermentation and aging
Distillation - ANSWER evaporation and condensing of alcohol vapors to produce
beverages with higher alcohol content
- leaves behind water
- cool ethanol vapor back into a fluid
- greater ethanol content
History of Distillation - ANSWER - discovered in Arabia around 800 AD (still
debated)
- Chinese kept their distillation process as a secret for years
- Albert Magnus was the first to publish the process
Grain Neutral Spirit (~90% alcohol content) - ANSWER - gin from juniper berry
- vodka from any alcohol source
- contains relatively few congeners
Distilled Spirits - ANSWER - whiskey from grains (~80% alcohol content)
- some flavor from the grain
- contains some congeners
