ingredient and brewing overview Flashcards
four main ingrediants of beer
yeast, water, hops malt
what is malt
generally malted barley but can be other grains (wheat, rye, oat)
what is malting
the controlled germination of cereals to activate enzyme
what is the final step in the malting process and what is its purpose
kiln drying
-stops growth and enzyme activity to stabilise the malt
-develops colour and flavour
what does malt provide to beer
-a source of fermentable sugars
-body and sweetness
what are adjuncts
other sources of fermentable sugars
examples of adjuncts
unmalted cereals
corn or cane sugar
honey, maple, bread
maltrodextrin, dextrose
why are adjuncts used
cheaper than malt
can provide different sensory properties
what are the key components in hops
resin
essential oil
what does the resin provide to beer
bitterness
balance sweetness + make it refreshing
what compound in the resin provides bitterness
iso-alpha-acids
what does essential oil provide to beer
aroma characters
floral, fruity, citrus etc
what is the purpose of hops in brewing
bitterness
aroma character
antimicrobial effect
how does the composition of water affect beer
determines beer character and style
-pH
-mineral ion composition
what does the mineral ion concentration of water do to beer
can accentuate either malt or bitterness
