Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Beer WSET 2 > Yeast and Bacteria > Flashcards

Yeast and Bacteria Flashcards

You may prefer our related Brainscape-certified flashcards:
WSET ® Level 1 Spirits flashcards WSET ® Level 3 Spirits flashcards WSET ® Level 2 Wine flashcards WSET ® Level 1 Wine flashcards WSET ® Level 3 Wine flashcards WSET ® Level 1 Beer flashcards WSET ® Level 2 Spirits flashcards WSET® Level 4 Wine flashcards WSET ® Level 2 Beer flashcards
1
Q

What is pitching or inoculation?

A

The process of adding cultured yeast to the wort.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the two different origins of yeast?

A

Cultured or Wild

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What 3 things does the choice of yeast strain influence?

A

1) The type of aroma created.
2) The amount of aroma created.
3) The sweetness of the final beer.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What’s ale yeast called?

A

Saccharomyces cerevisiae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What temperature does ale yeast ferment at

A

Warmer (18 - 24 Degrees C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How long does Ale yeast take to Ferment?

A

3 - 5 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 6 example ale yeast strains

A

Abbey Ale Yeast, Saison Yeast, Witbier Yeast, Weizen Yeast, British Ale Yeast and American Ale Yeast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What’s lager yeast called?

A

Saccharomyces pastorianus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What temperature does lager yeast ferment at

A

Colder (7 -15 degrees C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How long does lager yeast take to Ferment?

A

7 - 14 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How many Ale yeast strains are there?

A

1500 - 2000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How many Lager yeast strains are there?

A

approx. 150

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Esters give you …..

A

Fruity Aromas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Phenols give you …..

A

Spicy Aromas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is Brettanomyces? (Brett)

A

It is a type of Yeast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What complex flavours does Brett Yeast add?

A

Fruity esters (ripe pineapple), stone fruit (peach) and farmyard notes (hay, horse blanket, earth or leather)

17
Q

What general style of beer is made when using Brett Yeast?

A

Beers with low or imperceptible sweetness.
Lambic styles are often influenced using Brett as well as lactic acid bacteria.

18
Q

What is the most common type of bacteria used in beer production?

A

Lactic acid bacteria

19
Q

What does using lactic acid bacteria give to a beer?

A

Acidic notes as well as aromas of yoghurt/kimchi or sour fruits

20
Q

Apart from Lactic acid bacteria, name another style of bacteria used in beer production?

A

Acetic Acid Bacteria

21
Q

What flavour and aroma can acetic Acid Bacteria give to a beer

A

It can give the flavour profile of vinegar

22
Q

Do you want high or low levels of acetic acid bacteria in the beer

A

Low levels, as it can add complexity

23
Q

What beer is known to use acetic acid bacteria in the production process?

A

Flanders’s red

Beer WSET 2 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions