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FST 003
Beer Brewing introduction
97
Biology
Undergraduate 1
01/20/2011

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Term
what is Krausening
Definition
charge of freshly fermenting wort with a very high count of vigorously growing yeast is added late in the fermentation/maturation to provide an abundance of cells capable of eliminating the diacetyl
Term
what does yeast excrete?
Definition
ethanol and carbon dioxide
Term
what does yeast secretes?
Definition
hydrogen sulfide, dimethyl sulfide, and sulfur dioxide.
Term
what happens after fermentation and diacetyl destroyed?
Definition
The "green beer" produced stills needs to be refined in terms of tis flavor and its appearance.
Term
what are two types of particles needed to be removed from the beer at the end of fermentation?
Definition
Yeast and cold break
Term
what is the use of isinglass fining?
Definition
its to facilitate the sedimentation of particles, since it have a + charge of pH and yeast/others have - charge, such will attract forming large sediment.
Term
what is beer?
Definition
an alcoholic beverage usually made from malted cereal grain (barley), flavored with hops, and brewed by slow fermentation.
Term
what are some of its ingredients?
Definition
yeas (slow fermentation), water, malted grain (most popular barley), hops (are a type of spice for beer)
Term
What is propylene glycol alginate used for?
Definition
To reinforce beer foam, particularly to help its resistance to the damaging effects of oils and fats. (wholesome)
Term
what are the four main states of brewing?
Definition
Malting, brewing (extraction of the malt), fermentation (to convert those sugar into alcohol), finishing (sterilize + bottling)
Term
what is the general process of brewing?
Definition
added barley to water, malt, wort (add hops to wort), yeast added, beer trapped starch, freed starch, sugars, alcohol lousy flavor, nice flavor, raw flavor, beery flavor.
Term
what is adjuncts?
Definition
these are alternative sources of sugar e.g. rice, corn
Term
what do brewer aims to produce from beer?
Definition
efficiently (yield, capacity, lowest cost), highest quality (foam, clarity, color, flavor, shelf life), safe and wholesome, lastly meeting costumer's drinking convenience.
Term
what is the significant of the husk/hull?
Definition
Its is the filter
Term
where are the enzyme made in barley?
Definition
the aleurone
Term
where is the micropyle?
Definition
its is the only place on the kernel where water can get into the grain.
Term
what is the use of water?
Definition
water brings vitality to the barley.
Term
why do you start the killing process at low temp?
Definition
to preserve the enzymes.
Term
what is the result of ale malts?
Definition
more color and more flavor.
Term
what happens in the a brewhouse?
Definition
malt, mill, flour(grist, hull(want to preserve the husk but grind the inside))
Term
what is laurtering?
Definition
separate sugar solution(wort) form spent grains.
Term
what is modification?
Definition
modifying the starchy endosperm
Term
temp of steep?
Definition
14-18C 43-46% for 2 days.
Term
Temp of germination?
Definition
16-20*C (4-6 days)
Term
what is the temp of Kiln?
Definition
50-100*C (18-36 hrs)
Term
what happens in germination?
Definition
make sugars, make amino acid (melanoidins: color/ and flavors)
Term
why is oxygen need for yeast?
Definition
oxygen is need for yeast to make it's membrane.
Term
the different between ale and lager?
Definition
Ales are fermented at high temp than lagers.
Term
the percentage of beer?
Definition
90% barley malt is key grist component, 9% is wheat malt key grist component, and 1% sorghum malt is key grist component. 
Term
why is rice use in some companies?
Definition
rice is gluten free.
Term
what family is barley part of?
Definition
barley is part of the grass family.
Term
what is the two type of barley and which is use more?why?
Definition
there is the 6row barley which is mostly use in Us because of more protein, deal with adjunct such as rice.  The 2row barley contain more space for starch, more sugar, more beer, less protein (maltster/brewer prefer this more)
Term
what is the malting reprise?
Definition
if lose the starch, means lose in sugar, means less beer.
Term
what does more high gravity means?
Definition
more sugars and more extract. (specific gravity =weight of solution divided by weight of water)
Term
what happens in the brewery mill?
Definition
inside it there will be particle and extraction using hot water. The starch-breaking down enzymes produced in germination break down the starch to make a syrupy solution of sugars with a high specific gravity. (the higher specific gravity the more sugars/more Extracts) 
Term
what are the major states in US in descending order of production?
Definition
North Dakota, Montana, Idaho, Minnesota, Washington(Yakima), south Dakota, California, Oregon, Colorado, and Wyoming.
Term
what is constitutes a good barley for malting and brewing?
Definition
low level of nitrogen (low protein=more starch), high yield (more grain, less protein), resistance to infection, high extract potential, trouble free processing. 
Term
how to know the different in barley?
Definition
rough or smooth, crease variations, colors: white or blue.
Term
what are some threats to barley?
Definition
Midew, Fusarium (gushing), rust (infect grain).
Term
the criticality of steeping? 
Definition
aim(even uptake of water), depends on variety (kernel size, protein content, physiological condition, temp), easier uptake =better barleys for malting, steeliness/meanliness, interrupt steeps, meali barley open to water, steeli barley are tough and hard (difficult to take in water).
Term
rate of germination?
Definition
rate of modification influence, rate of hormone productivity by embryo, rate of enzymes synthesis and release aleuronic, digestibility of endosperm conponents. 
Term
what does kilning do?
Definition
arrest modification, retain enzymes rising temp regime, remove undesirable flavor, develop desirable flavors, develop color high color-high curing, avoid food safety problems.
Term
reasons for sticking with malt?
Definition
real effects on quality, perceived effects on quality.
Term
cost of beers least to greatest?
Definition
hops, adjuncts, minor ingredients, malt, production, bottling, tax,
Term
where is the lupulin glands?
Definition
its is hops( are sensitive to air), lupulin (resin:bitterness, oil: aroma)
Term
how are some methods of hops use in brewing?
Definition
late-hoping:  hops add later to added flavor in the kettle.  dry hoping is finish beer or later on in the brewing.
Term
Hop preparation?
Definition
Whole hops (mill, extrude), Pellets(liquid carbon dioxide), soluble extracts (catalyst), Pre-isomerizes extracts (hydrogen, help not get the skunky flavor), reduced pre-isomerizes extract. 
Term
which country grows the most barley?
Definition
Russian and place in USSR. 
Term
water usage?
Definition
beer is 90% water, good brewery uses 3-4x more than ends in beer. 
Term
the process water in brought in?
Definition
river, pumping station, impounding reservoir, primary filters + second filters chlorination, pumping station, service reservoir, tap.
Term
Brewing water?
Definition
water uses to make the beer/ extract malt/mix yeast.
Term
Cleaning water?
Definition
clean the floor/vessel/tank.
Term
service water?
Definition
converted into steam (heating water)
Term
water treatment?
Definition
charcoal filtration (rid of any taste), ion exchange (demonized water), and sterilization.
Term
what happens to the wasted water?
Definition
clean up and reuse again.
Term
what is Aerobic?
Definition
is the treatment of water that need oxygen which convert it carbon dioxide.
Term
what is anaerobic?
Definition
bacteria do not like oxygen, do not produce carbon dioxide, but produce methane and recover energy.  
Term
what is godegood?
Definition
use during the medieval time, brewing yeast to count bud scare to see how old the cell is. 
Term
what is needed for the source of yeast?
Definition
energy, C, N, O, Vitamins, Mineral(zinc)
Term
what is produce during fermentation?
Definition
alcohol(7%), carbon dioxide, flavorsome substances, more yeast 3x (use the extra yeast produce to make alcohol)
Term
what is the flavor from yeast?
Definition
higher alcohol, acetaldehyde, esters, fatty acids, diacetyle, sulfur substances. 
Term
what can act as a capacitor?
Definition
Yeast. wort?
Term
What country brew the most beer from highst?
Definition
China, US, Germany, brazil, Russia, Mexico, Japan.
Term
who consume the most beer?
Definition
Czech Republic consume the most beer. 
Term
what are the four brewing companies 50% of world's beer?
Definition
anheuser-busch/inbev, sab-miller, carlsberg, heineken.
Term
what is pub brewer?
Definition
sells majority of beer on site.
Term
what is microbrewery?
Definition
produces less than 15,000 per year.
Term
regional brewery?
Definition
produces from 15,000-2mil per year. 
Term
what did President Jimmy Carter do?
Definition
signed the legislation making home-brewing legal from 50 in 1960 to 1,600 and growing.
Term
what is the alcoholic in beer of US, UK, and Canada?
Definition
US-4.6%, UK-4.2%, and Canada-5.0%
Term
what is the tax law in UK?
Definition
 the stronger the beer the more tax you have to pay. 
Term
what is the brewing major economic impact in US?
Definition
$190 billion each year to the economy.
Term
law in US?
Definition
its is illegal for brewer to sell directly to consumer. (except brewpubs.)
Term
what is the three tier arrangement?
Definition
brewer (supplier), the distributor, retailer.
Term
top five beer drinking states?
Definition
Nevada, new hampshire, wisconsin, new mexico, texas.
Term
In what country is the Sinebrychoff brewery?
Definition
Finland, Carlsberg
Term
what is use for wort separation?
Definition
Lauter tub:  wide but grain depth is very low, separating liquid wort from the residual.
Term
what is the Darcy's Law?
Definition

rate of liquid flow:  (pressure x area x permeability)/ (bed depth x viscosity)

 

want:  short distance to travel & big surface area, low viscosity: higher flow rate, raise in temp=low viscosity, high permeability.

Term
what does a mash filter do?
Definition
lots of plate, more plates better composites. then apply pressure.
Term

what is the function of boiling?

 

Definition
Inactivation:  no enzymes will survive, sealing things off.  Precipitation:  of protein and other stuff will precipitate and become clouding -nice stable beer.  Volatilization:  smell, drying lot of unwanted aroma.  Concentration:  bringing of steam, and making the sugar more concentrated.  Isomerization:  convert soluble.  Sterilization:  beer is better for you to drink then water, kill microorganism.  
Term
Clarifying wort?
Definition
hop back  use whole hop to filter the wort through.  Coolship:  very large vessels with shallow dect.  whirlpool:  big tank and shoot wort and around it goes, and pile gather in the a place and you can separate.
Term
what is the easiest way to measure wort?
Definition
use a hydrometer:  measure of sugar. 
Term
what does high gravity do?
Definition
max utilization of fermentor by adding water at the end to produce more beer. 
Term
How would you reduce foam formation in fermetor?
Definition
the control of propylen glycol alginate (PGA)
Term
what quality does hops have?
Definition
its have preservative qualities.
Term
how is beer sale control?
Definition
after the repeal of the prohibition, the states have the control over the sales of beer instead of the federal government.
Term
how is the hormone introduce and what does it do once activated?
Definition
the hormone is activated by the water that seeps through the micropyle and its turns on enzymes that eats the most of the cell wall.
Term
what is the total but general process of brewing?
Definition
Silo (grist case), mill, mash mixer, lauter tun, kettle, whirlpool, paraflow, fermenter, chiller, storage, filter, bright beer tank.
Term
what does barleycorn consist of?
Definition
baby plant (embryo), food reserve (starchy endosperm), protective layers. 
Term
what is the four process of modern malting operation?
Definition
intake, drying, storage of barley; steeping; germination, and kilning.
Term
purpose of steeping?
Definition
increase the moister content of the grain.
Term
purpose of germination?
Definition
is to develop the enzymes capable of hydrolyzing the cell walls, the protein, and the starch and to ensure that these act to softens the endosperm by removing the cell walls and about half the protein, while leaving the bulk of the starch behind.
Term
what is the purpose of kilning?
Definition
comprise of drying of malt to such a low level of moister that it is stabilized, with germination arrested and enzymes digestion halted.
Term
what is pitching?
Definition
is the process of adding yeast to the wort.
Term
what power does zinc have on yeast?
Definition
zinc is the key component of one of the enzymes that yeast requires to carry out alcoholic fermentation.
Term
how do you minimize foaming?
Definition
by adding an antifoam agents mostly frequently based on silicone
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