Vocab Flashcards
Low alcohol level
4% abv or below
Medium alcohol level
4.1 - 5.9% abv
High alcohol level
6 - 9% abv
Very high alcohol level
above 9%
“Malt” another term is…
same as malted grains
Malt provides ___ during fermentation
sugar
Besides sugar, what else malt provides in the style of the beer?
colour and range of aromas
what is “catalysts”
substances that speed up reactions
what’s the catalyst breakdown starch into sugar?
enzyme
enzymes breaks down the starch into ___ during starch conversion
short-chained sugar molecules
Under what condition, the enzyme in the malt will convert the starch into sugar?
when the milled malt is mixed with hot water
more precise term of “hops”
hop cones
what exactly is the hop cones in the plant?
it’s the flower of the hop plant
what’s the initial function of using hops in beer?
antibacteria. In order to preserve the beer
today, what’s the main purpose of using hops in beer?
for bitterness and aromas bring into the beer
what are the steps in making beer (6 steps)?
Milling
Mashing
Wort boiling
Fermentation
Carbonation
Packaging
What is ‘grist’?
milled grains
what’s in the ‘mash’?
sugary liquid and the undissolved particles (primarily husks)
what is “mash” when mashing?
mixing the grist with hot water, the mixture is called the “mash”
What’s is “spent grains”
the leftover undissolved particles separated from mash
what is “wort”
the sugary liquid separated from the undissolved solid
what’s the purpose of ‘wort boiling’?
killing microorganisms, prevent spoilage.
What addition can take place during wort boiling
main hops addition
How the wort is treated after boiling?
cool down rapidly to a temperature suitable for fermentation
What’s the vessel called for wort boiling
kettle
where the fermentation take place?
the wort is transferred to the fermentation vessels
what’s the other name of the foam on top of a glass of beer?
head
What can be done to top up the carbonation level?
1) inject the CO2 that’s been purchased or recovered from earlier fermentations
2) further fermentation after packaging in a sealed bottle (bottle-conditioning)
What’s bottle-conditioning
further fermentation after packaging in a sealed bottle to produce more alcohol and CO2
what’s the side effect after bottle-conditioning?
a sediment of yeast settled at the bottom of the bottle
the most common containers for beer packaging?
bottle
can
keg
other than malted grains, can beer use other sources of sugar?
Yes, sometimes used in combination with malt.
which cereal plant is the most important grain for making beer?
barley
what’re the cereal plants can be used to make beer other than barley
wheat
maize (corn)
oats
rye
rice
sorghum
what is “embryo”
the “baby” inside the seed.
*it is a microstructure of a new plant stored inside the grain
What is “malting”?
the process that turns grains into malts (malted grains)
What’s the purpose of “malting”?
to release the enzymes needed to convert starch to sugar
What’re the steps of malting? (3)
steeping
germination
kilning
How “steeping” works?
- the grains are steeped (submerged) in water
- when the grains absorbed enough water, the embryos start to grow
What “germination” means?
the growth of the embryo
What happens during germination?
enzymes are being produced
What’s the purpose of kilning?
stopping the growth of the grain, once the enzymes are produced.
How “kilning” works
by heating and drying the grains using warm air in a kiln (窯)