Brewing Flashcards
(38 cards)
four main ingredients in beer
yeast
water
hops
malt
what does malt commonly refer to
malted barley
what is malting
controlled germination of cereals to activate enzymes
what is malting
controlled germination of cereals to activate enzymes
what happens to the barley after it is germinated
kiln dried
what does kiln drying do
kills the growing plant
stops enzymatic activity and stabilizes the malt
develops colour and flavour
what does malt provide during brewing
- fermentable sugars that can be turned into alcohol
- sweetness + body
what are adjuncts
other sources of fermentable sugars
type of adjunct
cereals (rice/corn)
corn/cane sugar (sucrose)
honey/maple syrup etc
maltrodextrin, dextrose
why are adjuncts used
cheaper
change sensory properties
what are hops
- female flower cone
- a perennial climbing plant
what are the two important components of hops
resin
essential oils
where are the essential oils and resin found
lupulin glands of the flower cone
what do resins add to beer
bitterness
what do essentials oils add to beer
aroma characters
three purposes of hops in beer
bitterness
flavour and aroma
antimicrobial properties
how does the composition of water affect the beer character and style
pH
mineral ion composition
How does water affect beer
- provides different conditions for biochemical reactions
- yeast nutrition
- different mineral ions concentrations accentuate either malt or bitterness
what strain of yeast is used for ale brewing
Saccharomyces cerevisiae
what strain of yeast is a top fermenter
Saccharomyces cerevisiae
what type of beer is produced by top fermenters then which is by bottom
top= ale bottom = lager
strain of yeast used to produce lagers
Saccharomyces pastorianus
what type of fermenter is Saccharomyces cerevisiae
bottom fermenter
what is a major determinant of beer style
yeast strain
