Week 1: Beer

Question 1

Four main ingredients of beer:

Answer 1

Water
Malted grain (usually barley)
Hops
Yeast

Question 2

Water percentage of beer:

Answer 2

95%

Question 3

How many hL of water needed to produce 1hL of beer:

Answer 3

4-10hL

Question 4

Ales: works best with hard or soft water? Why?

Answer 4

Ales = Hard
Works well with hops

Question 5

Lagers and Pilseners work best with hard or soft water? Why?

Answer 5

Lagers and Pilseners = Soft
Softer body and mouthfeel

Question 6

What are hops?

Answer 6

Flowers that grow on vines

Question 7

What do hops contain?

Answer 7

Resins (lupulin) and essential oils

Question 8

What flavours do hops provide?

Answer 8

Bitterness
Aromas
Dryness

Question 9

What is bittering?

Answer 9

The higher the alpha acids, the more bitter the hop

Question 10

Do hops act as a preservative?

Answer 10

Yes

Question 11

Name 4 famous examples of hops:

Answer 11

Cascade
Chinook
Willamette
Saaz

Question 12

How can hops impact the style of a beer?

Answer 12

Different varieties work best with different beers

Question 13

Describe a noble hop:

Answer 13

Low in bitterness
High in aroma

Question 14

Does the timing of hops addition make an impact?

Answer 14

Yes - more bitterness if added sooner

Question 15

Where do noble hops come from?

Answer 15

Europe

Saaz

Question 16

Modern hops:

Answer 16

Wild - named after the region or city where they were identified

Question 17

Name some hop aromas:

Answer 17

Floral
Citrus
Fruity
Grassy
Herbal
Piney
Tea
Spice
Earthy

Question 18

Hops with high Alpha acids are more bitter or more aromatic

Answer 18

Alpha = bitter

Question 19

Hops with high Beta acids are more bitter or aromatic?

Answer 19

Beta = aromatic

Question 20

IBU meaning:

Answer 20

International Bittering Units

Question 21

What IBU measures:

Answer 21

Bitterness in beer

Question 22

IBU’s are recognizable at what level:

Answer 22

20

Question 23

Bitter - what IBU?

Answer 23

30+

Question 24

Quite bitter - what IBU?

Answer 24

40+

Question 25

Very bitter - what IBU?

Answer 25

60+

Question 26

Max IBU threshold?

Answer 26

100+

Question 27

Malt flavours:

Answer 27

Coffee Biscuit Toast Roasted Chocolate Bready Honey / sweet Caramel / Toffee Nutty

Question 28

What is yeast?

Answer 28

Bacteria put into the wort which converts sugars to alcohol

Question 29

How can yeast alter beer flavours?

Answer 29

Different yeasts create different beers

Question 30

At what temps are top fermented beers?

Answer 30

Fermented at warmer temps (15-24c)

Question 31

What style of beer is top fermented?

Answer 31

Ales (hard water, top fermented)

Question 32

What style of beer is bottom fermented?

Answer 32

Lager (soft water, bottom fermented)

Question 33

At what temps are bottom fermented beers fermented at?

Answer 33

Fermented at cooler temps (7-13c)

Question 34

Yeast for top fermented ales: Where does the thick layer of foam form during fermentation: Fermentation temp for top fermented beer? What does top fermentation create?

Answer 34

Saccharmyces cerevisiae Foamy layer at top 18-24c Esters

Question 35

Bottom fermented beer yeast: Temp for bottom fermentation: How much sugar does it ferment?

Answer 35

Saccharomyces Pastorianus 5-14c More than ale yeast, so crisper

Question 36

Describe the brewing process:

Answer 36

Malting Milling Mashing Brewing (hops added) Brewing Fermentation Maturation Filtration Pasteurization Packaging

Question 37

Is beer a delicate beverage

Answer 37

Yes

Question 38

Define a beer fault:

Answer 38

Any beer attribute not intended by the brewer

Question 39

Two types of beer faults:

Answer 39

From brewing process Post packaging

Question 41

Describe a lager style:

Answer 41

Cooler fermenation Crisp and clean Lighter body

Question 42

Describe an ale beer style:

Answer 42

Sweeter and more complex than lagers Pronounced fruity and spice with esters

Question 43

Describe a sour beer:

Answer 43

Tart, acidic, complex Funky Fruit and vinegar

Question 44

Describe a pilsener:

Answer 44

Light body Light colour Crisp, clean and refreshing Moderate bitterness and balanced malt sweetness

Question 45

Describe an IPA

Answer 45

High hop content Bitter Fruit, citrus, pine