Brief History of Beer Flashcards

1
Q

Give a brief history of beer

A

4000 BC - middle east - Sumer people
3000 BC - Babylonians
1550 BC - Egyptians
100 AD - Roman Empire
1000 AD - Most beer - ‘GRUIT’/‘GRUT’(German for herb) - bittered
822 AD - Introduction of Hops - mentioned in records in Germany.
Saint - Hidegarde of Bingen, - 1150 - hops added to beer ‘reduced the putrefaction’ caused by spoilage organisms.
Addition - slowly spread throughout EU; reached Britain - middle of 15th cent
1516 - The Reinheitsgebot

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2
Q

Who were the Sumer people and what did they contribute to beer

A

Sumer people - fermenting a form of bread to make a fermented pulp which had an intoxicating effect - a “divine drink”

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3
Q

Who were the Babylonians and what did they contribute to beer

A

up to 20 different types of beer.

Early beer - cloudy & unfiltered = usually drunk through a straw - avoid bitter solids from the brew

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4
Q

Who were the Egyptions and what did they contribute to beer?

A

beer and malt found buried in the tombs of the Pharaohs to provide sustenance for the afterlife.

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5
Q

What is Midas touch?

A

attempt to recreate ancient beer - made from ingredients found in 2,700-year-old drinking vessels from the tomb of King Midas = sweet & dry beer; taste is between beer, wine and mead.

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6
Q

What did the roman empire contribute to beer?

A

beer drunk extensively but preferred wine = introduced grapes into Southern part of the Empire

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7
Q

What was the beer like in the roman empire?

A

Beer - consumed fresh; served cloudy; little/no foam.
For taste - bitter herbs and spices used
Beer - didnt travel well - no preservatives(hops)introduced yet - easier to store and transport grains = brewers became part of lixae (roman camp followers for trading purposes).

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8
Q

What was the Reinheitsgebot?

A

world’s first food ingredient regulation is the German Purity Law - introduced in the Munich area in 1447 and extended to the whole of Bavaria in 1516. It later included the rest of Germany.
The law stipulated that beer could only be brewed from water, hops and malt – the use of yeast would come later - after it - identified as org = fermentation.

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9
Q

Where do we get the name ‘beer’ and ‘cerveza’ from?

A

The intoxicant known in English as beer' takes its name from the Latin bibere’ (by way of the German bier') meaning to drink’ and the Spanish word for beer, cerveza’ comes from the Latin word cerevisia' for of beer’, giving some indication of the long span human beings have been enjoying the drink. Even so, beer brewing did not originate with the Romans but began thousands of years earlier.

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10
Q

How do we know drink dates so far back? (Sumerians and Babylonians)

A

Paintings, poems, and myths depict both human beings and their gods enjoying beer which was consumed through a straw to filter out pieces of bread or herbs in the drink. The brew was thick, of the consistency of modern-day porridge, and the straw was invented by the Sumerians or the Babylonians, it is thought, specifically for the purpose of drinking beer

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11
Q

When was the first recipe of beer written down?

A

The Sumerian poem Hymn to Ninkasi is both a song of praise to the goddess of beer, Ninkasi, and a recipe for beer, first written down around 1800 BCE.
The beer had an alcohol concentration of 3.5%, very similar to modern beers, and had a ‘dry taste lacking in bitterness,’ ‘similar to hard apple cider.’

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12
Q

What word did sumerians use for beer?

A

The Sumerians had many different words for beer from sikaru to dida to ebir (which meant `beer mug’) and regarded the drink as a gift from the gods to promote human happiness and well being.

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13
Q

What was beer made from in sumerians society?

A

Beer was made from bippar (twice-baked barley bread) which was then fermented and beer brewing was always associated with baking.

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14
Q

What was the most popular beer in Egypt and why was beer consumed?

A

The most popular beer in Egypt was Heqet (or Hecht) which was a honey-flavored brew and their word for beer in general was zytum. The workers at the Giza plateau received beer rations three times a day and beer was often used throughout Egypt as compensation for labor.

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15
Q

What did the Egyptians think of beer?

A

The Egyptians believed that brewing was taught to human beings by the great god Osiris himself and in this, and other regards, they viewed beer in much the same way as the Mesopotamians did.

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16
Q

What did the Greeks and Romans think of beer?

A

Beer brewing traveled from Egypt to Greece (as we know from the Greek word for beer, zythos from the Egyptian zytum) but did not find the same receptive climate there. The Greeks favored strong wine over beer, as did the Romans after them, and both cultures considered beer a low-class drink of barbarians.

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17
Q

Wheres evidence for beer in germany?

A

known from great quantities of beer jugs, still containing evidence of the beer, in a tomb in the Village of Kasendorf in northern Bavaria, near Kulmbach.

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18
Q

What is beer without hops known as?

A

‘Gruit’ (or ‘grut’)

wild herbs: bog myrtle/lemon balm(Melissa officinalis), borage, St John’s wort, elderberries

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19
Q

Who is credited for adding hops to beer?

A

Saint - Hidegarde of Bingen, - 1150 - hops added to beer ‘reduced the putrefaction’ caused by spoilage organisms.
published a book called Physica Sacra, which translates best as “The Natural World”, “De Hoppho”, or “Concerning the hop”, - preservative qualities of hops when added to a beverage like beer.

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20
Q

What are the two main steps for brewing beer?

A

The brewer must derive the wort from malted grain

Then the wort is fermented

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21
Q

How many ounces does a standard US longneck beer bottle contain?

A

12 oz

22
Q

What is the wort?

A

Sugar-rich liquid derived from malted grains

23
Q

What are the 4 main ingredients of beer?

A

Water
Yeast
A start source (grains)
Hops

24
Q

How do you malt grains for beer production?

A

The grain is steeped in water for appx 2 days to promote germination of the grain
Once it begins to germinate, or sprout, it is transferred to compartments with controlled temperature and moisture levels
As the sprout grows to nearly an inch in length, the enzyme amylase is produced, which converts the starchy carbs to fermentable sugars
This is then roasted to halt further growth
(Soaking the barley grains in water
Germination and aeration
Roasting)

25
Q

What is the cereal grain used for most beers?

A

Barley

26
Q

What is green malt?

A

Unroasted malt

27
Q

What two sugars are produced when malting grains?

A

Maltose and Dextrin

both fermentable

28
Q

What are the two subsets of beer?

A

Lagers and Ales

29
Q

What is the major difference between a lager and an ale?

A
Lager
- wort is cooled to a lower temperature
- bottom-fermenting yeasts 
- ferments slower 
Ales
-wort is at warmer temperature
- use top fermenting yeasts
- fermentation is quick, usually less than a week
30
Q

What is the typical alcohol content of beer?

A

4-6%

31
Q

Name the different types of ales

A
Brown Ale
Pale Ale
Scotch Ale
Stout
Porter
32
Q

Name the different types of lagers

A

Pilsner

Pale Lager

33
Q

How was yeast in beer discovered

A

Leeuwenhoek discovered that yeast consist of globules floating in a fluid, but he thought they were merely the starchy particles of the grain from which the wort (liquid obtained from the brewing of whiskey and beer) was made (Huxley 1894).
- in 1755, yeast were defined in the Dictionary of the English Language by Samuel Johnson as “the ferment put into drink to make it work; and into bread to lighten and swell it.”

34
Q

What is hops used for?

A

Bittering
Used in long boils for high alpha acid isomerisation (bitterness). Generally low oil content.
Finishing
Used late in boil, after boil, or possibly dry hopping. High oil content, lower alpha acid content.

35
Q

What is Lautering?

A

is basically a filtering of the WORT by the grain husks in the wort, similar to using the coffee grounds to filter coffee in a French Press or press pot.

36
Q

What is Sparging?

A

is rinsing the grain husks bed with hot, 76oC water to remove all the sugars.

37
Q

Why is the wort boiled?

A

Sterilize the wort to kill all microorganisms.
Denature proteins (enzymes).
Dissolve resins from the hops.

38
Q

Why is the hot wort cooled rapidly?

A

Minimize contamination of the wort
Prevent oxidation when transferring wort to the fermenter
To precipitate proteins in the wort which can effect flavour, colour and clarity

39
Q

What is fermentation?

A

The conversion of sugars to alcohol and carbon dioxide.

Temperature maintenance important and relates to temperature dependence of yeast strain and beer type.

40
Q

What are the two types of fermentation?

A

Open or closed fermentation

41
Q

What temperature are
a) Lagers
b) Ales
fermented to?

A

Lagers: 9-15oC
Ales: 15-23oC

42
Q

What is open fermentation?

A

Open Fermentation is the name given to fermentations that take place in vessels that are “open” to the environment in which they are situated.
These are top fermented beers like ales, Anchor Steam beer and some Belgium style beers.

43
Q

What is closed fermentation?

A

The more common type of fermentation.

Easier to prevent contamination from other yeast and bacteria.

44
Q

What are the two main stages of fermentation?

A

Stage 1
1. plenty of O2 = yeast cells reproduce easily; alcohol is not produced.
2. O2 supply - exhausted = reproduction of yeast cells slows; fermentation begins - sugarsmost of the easily fermentable sugars => ethanol + CO2.
Stage 2
1. Yeast starts to work on heavier sugars(maltotriose) = Fermentation slows - ‘conditioning’

45
Q

What are cask and bottled conditioned ales?

A
  • unfiltered and unpasteurized.
  • beers are more complex, require careful storage and in the case of cask-conditioned ales, must be consumed within 72 hours of the cask being opened.
  • do not require the addition of CO2 and N2 but are served by hand pump or gravity.
46
Q

What is considered the highest quality of beers?

A

Cask and bottled conditioned ales

47
Q

What are Keg, Bottled & Canned Beer (vs bottled conditioned ales?)

A
  • filtered, pasteurized - designed for consistency, ease of pouring and storage.
  • replaced cask conditioned, live, ales in the 1960s in UK.
  • served cold and with gas added (carbon dioxide and/or nitrogen).
48
Q

Mild vs Bitter beers

A

Mild
- most traditional beer styles
- dark brown in colour - well-roasted malts/barley
- less hopped - chocolatey character & nutty & burnt flavours
- strength - 3.0 to 3.5%.
Bitter
- end of 19th century
- developed ‘running beers’ - could be served after a few days’ storage in pub cellars.
- deep bronze to copper in colour - slightly darker malts(crystal - give fullness of palate)
- strength - 3.4 to 3.9%.

49
Q

What is the significance of India Pale Ale?

A
  • changed the face of brewing early in the 19th century.
  • new technologies of the Industrial Revolution enabled brewers to use pale malts to fashion beers that were genuinely golden or pale bronze in colour.
  • First brewed in London and Burton-on-Trent for the colonial market, IPAs were strong in alcohol and high in hops: the preservative character of the hops helped keep the beers in good condition during long sea journeys.
50
Q

What is Pale Ale?

A

Beers with less alcohol and hops were developed for the domestic market and were known as Pale Ale

51
Q

How did Porter and Stout Porter turn the brewing industry upside down early in the 18th century

A
  • dark brown beer, 19th-century versions became jet black
  • originally a blend of brown ale, pale ale and ‘stale’ or well-matured ale.
  • Porter as a result of its popularity among London’s street-market workers.
  • Restrictions on making roasted malts in Britain during World War One led to the demise of Porter and Stout and left the market to the Irish.