Ch. 7 How to Make Shochu Flashcards

1
Q

What is the name of the process in shochu making that is equivalent to shubo in sake production

A

ichiji-moromi (first-stage moromi)

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

What is the name of the process in shochu making that is equivalent to moromi in sake production

A

niji-moromi (second stage moromi)

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

In shochu production, all ____ is added to the first stage

A

koji

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

Main ingredients are added to the ____ stage

A

second

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

Shochu production does not require ____ and fermentation temperature is ___

A

lactic acid
high

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

What is a rotating drum automatic koji maker?

A

Process of washing, soaking, steaming and koji-making can be carried out in one machine

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

After steamed rice is cooled in the drum, how is koji made on the 1st day?

A

Koji spores sprinkled over rice in several batches

Small drum compartment closed and allow spores to germinate for one day

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

On the 2nd day of koji making, what is the semi-automatic koji-making machine called?

A

Sankaku-dana but not all distilleries use this

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

In the sankaku-dana, at what temperature does the koji reach and to what temperature is it lowered?

A

40C down to 35C

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

Why is 35C the target temperature for koji making

A

It’s when it produces abundant citric acid

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

What is the scientific name for black koji

A

Aspergillus awamori

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

What is the scientific name for white koji?

A

Aspergillus kawachi

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

How is sweet potato processed for shochu making?

A

First trimmed (removing decayed parts which causes bitterness)

Then sliced in half and sorted for nematodes or frost damage

Washed in a machine with mechanical brushes and shower

Lastly, crushed to 1cm or smaller using a crusher

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

what is added to Ichiji moromi

A

All koji, water, yeast

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

How long does ichiij-moromi take on average?

A

6 days

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

What is the maximum fermentation temperature at ichiji-moromi

A

30c

17
Q

What is sashi-moto?

A

A process where part of a separate ichiji-moromi that is 3-4 days old with plenty of healthy yeast is used in place of pure-cultured yeast

18
Q

What is the pros and cons to sashi-moto

A

Increases risk of contamination by wild yeast

Prompts fermentation

Improves alcohol yield

19
Q

Shochu kobo are more resistant to ____ than sake yeast and are suited to _____ temperature fermentation

A

acidity

high

20
Q

What is in the niji-moromi

A

ichiji-moromi transferred to a large tank
remaining water
steamed main ingredients

21
Q

What is the temperature of ni-ji moromi

A

High at 30C

22
Q

What is the ABV of ni-ji moromi after fermentation is finished

A

14-20%

23
Q

How long does the standard distillation take

A

3 hours

24
Q

What are the two heating methods of distillation

A

Direct heating
Steam blown directly onto moromi

Indirect heating
Steam passes through a dedicated steam pipe in the pot still and heats the moromi through the metal of the pipe

25
Q

At what temperature does moromi boil with atmospheric distillation

A

85-95C

26
Q

At what temperature does moromi boil with vacuum distillation

A

45-55C

27
Q

Why is atmospherically distilled shochu stored

A

Contains gases that have not dissipated leaving a sharp rough aroma. Gas slowly dissipates during storage

28
Q

How is shochu usually stored

A

In its genshu state

29
Q

What is added before shipment? What is the commercial ABV for shochu

A

Water
20-25%

30
Q

How long is shochu typically aged before being shipped

A

Within 1 year of distillation

31
Q

Why was shochu sometimes considered malodorous

A

Oil odors
Fatty acid ethyl esters are produced in moromi and float as an oil component on the surface of the storage tank. This needs to be skimmed or filtered out. Can also use activated carbon