Beer Flashcards
Beer
Barley malt + yeast + water + hops = beer + co2
Fermentation
Sugar + yeast = alcohol + co2 + heat
Rheinhetsgebot
Bavarian purity law of 1516
Beer ingredients
Water
Barley
Yeast
Hops
Water in beer
97% of beer
Barley in beer
Best beers use germinated barley
Yeast in beer
Responsible for fermentation
Strain of yeast is important to the style of the beer
Hops in beer
Bitterness
Other unique qualities
How is bitterness measured in beer
IBU
international bitterness units
Steps in beer production
Harvest barley Germination Kiln Grind Steep Yeast Alcoholic fermentation Filter Pasteurize Bottle
What occurs during germination
Malts barley
Produces 2 enzymes diastase and amylase
What occurs during the kiln process
Stop germination
Possibly toast the malt
What occurs during steep
In warm water to extract maltose sugar creating wort
Lagers
Bottom fermenting Yeasts
Cool, slow fermentation
Lighter in color body flavor and alcohol
Ales
Top fermenting yeasts
Warm fast fermentation
Fuller in color body flavor and alcohol