Certified Sake Sommelier Course Flashcards
Which is more important in sake: taste or aroma?
Taste
How much of what we perceive as taste (flavour) is actually from the sense of smell (aroma)?
80%
What are the effects of alcohol on taste of sake?
1) Retro-olfaction - alcohol is more volatile, which draws the aromas up by retro-olfaction (so we can smell the drink as we taste it), especially as the sake warms up.
2) Alcohol acts as a solvent for the flavours in the food, boosting them.
What is first impression/retro-olfaction of genshu?
- Usually quite explosive
What type of aroma characteristics are typical to Daiginjo?
- Fruity
How many aroma components in sake?
- More than 600.
Describe the procedure to taste sake.
1) Evaluate color
2) Smell aromas
3) Taste by sipping and holding in your mouth while sucking air in to explode flavours and aromas
4) Expose to all parts of tongue to determine sweetness, body, taste, astringency, umami and texture
5) Exhale to determine secondary fragrance called Fukumika which is the aftertaste intensity
What is Fukumika (含み香) ?
A term for after taste intensity of sake.
What does Nihonshu-do (曰本酒度) measure?
- Residual sugar.
What does SMV mean?
Sake Meter Value - measures the density of sake compared to water to give indication of sweetness: from -15 (sweet) to +15 (dry).
- Remember: higher is drier.
- Aka Nihonshu-do 曰本酒度.
What does SMV of 0 mean?
The sake is the same weight or density as water and can be called dry by some people.
What does a negetive SMV mean?
Sake is more dense than water, may be due to more sugar or less alcohol.
How does acidity affect taste of sake?
Sake with higher acidity will taste more dry and more full-bodied.
How much does a choko (猪口) hold?
- 20 ml
How much is the capacity of a go (合)?
- 180 ml
How much is the capacity of a sho (升)?
- 10 go = 1.8L
How much is the capacity of a Toguri (德利)?
- 2 or 4 masu (马苏)
How much is the capacity of a masu (马苏)?
- Masu (马苏) = go (合) = 180 ml
How is acidity of sake measured?
- By titration.
What is the scale (range) of acidity of sake?
- A number between 0.7 (less acidic) and 3 (more acidic)
What is the Japanese term for low acidity in sake?
- Kokugaru (コクがある)
What is the Japanese term for high acidity in sake?
- Sabari 清爽 (“crispy”)
Which acids are present in sake?
- Lactic, succinate, malic and other organic acids.
Decribe sake production by type of sake.
- Non premium 73.8%
- Honjozo 10.8%
- Junmai 8.9%
- Ginjo 6.7%
- Junmai Ginjo 3.7%
How many breweries are in operation today in Japan?
- 1,300 breweries.
How many types of amino acids are present in sake?
- 20 Amino acids.
How do amino acids affect taste of sake?
- They affect the umami
- They affect the breadth, richness etc
- The higher the amino acidity, a more full-bodied, rich-tasting sake. A lower amino acidity means a cleaner, mellower taste.
What is the International Wine Challenge?
- Organized in partnership with Sake Samurai Association since 2007.
- Awards are: Commended, Great Value, Bronze, Silver, Gold, Trophy.
What is the National Research Institute of Brewing?
A research organization started in 1904: to conduct advanced analysis and evaluation of alcoholic beverages, an research on brewing and dissemination to enable a suitable and fair imposition of liquor taxes, plan for sound development of the industry, and to enhance public awareness of alcoholic beverages.
What is the Annual Japan Sake Awards?
- Organized by National Research Institute of Brewing since 1911.
- Purposes: clarify current manufacturing technology and trends, improve sake quality and enhance public awareness.
- Awards: Gold Prize Winner
What are Drinking responsibilities and its 3 legal areas?
- Legal age to purchase and consume
- Blood alcohol concentration for drivers
- Drinking guidelines
What are the Blood alcohol concentration (BAC) levels?
3-tier penalty system:
- Level 1: 50-80 mg alcohol / 100 ml blood
- Level 2: 80-150 mg alcohol / 100 ml blood
- Level 3: over 150 mg alcohol / 100 ml blood
How much pure alcohol is 1 unit of alcohol?
- 10 ml pure alcohol.
How much BAC does 1 unit of alcohol raise?
- 20-30 mg alcohol / 100 ml blood.
At what rate does human body break down alcohol?
- 1 unit per hour.
On what factors does the speed at which alcohol gets into bloodstream depend?
- Size, gender, food eaten, medication, etc.
What is the daily consumption of alcohol for women?
2-3 units a day =
- 10 x 20ml glasses of sake, or
- 1.3 x 175 ml glasses of wine, or
- 1.3 pints of 4% lager, or
- 3 x 25 ml shots of whiskey.
What is the daily consumption of alcohol for men?
3-4 units a day =
- 13 x 20ml glasses of sake, or
- 1.7 x 175 ml glasses of wine, or
- 1.7 pints of 4% lager, or
- 4 x 25 ml shots of whiskey
What is the average alcohol content of premium sake?
- Between 12% and 18%.
How much alcohol does an average glass of sake at 15% alcohol have?
- 0.3 units or 30 calories.
What is the aroma characteristics of nama sake?
- smell of roses.
What type of sake has a very alcoholic aftertaste?
- Non-junmai Sake
What are the typical fruity aroma characteristics of a Junmai Daiginjo?
- Pineapple, peach, pear, melon & banana.
What are the 3 components of sake?
- Rice 米
- Water 水
- Koji 麹 (enzyme)
Describe the sake making year timetable.
Sep to Mar:
- May - plant seeds
- Sep - harvest rice
- Oct - start sake production
- Mar - finish production
Describe the components of rice.
- Carbohydrate 70-75% (needed for fermentation)
- Protein 7-8% (adds umami)
- Fat 2% (off taste)
- Ash 1% (off taste)
- Vitamins small amount
What type of rice is cultivated in Japan?
- Japonica (Oriza sativa).
Name the 2 main varieties of Japanese rice.
- Table rice 95%
- Sakamai (rice for sake production) 5%
What is shinpaku (心白)?
Shinpaku is the concentration of starches in the middle of a sakamai rice grain.
What is saccharification?
The process by which carbohydrates are broken down into glucose (so the starch can ferment).
What is Shuzo kotekimai?
The rice used to brew sake is called “Sakamai” (sake rice) among which there is an extra special type best suited to sake brewing rather aptly named ‘brewing rice’ or Shuzokotekimai (rice perfectly suited to brewing) in Japanese.
How is Shuzokotekimai different from Sakamai?
The difference between ordinary Sakamai and Shuzokotekimai is the size of its Shimpaku (white heart), a nucleus in the centre of the grain filled with starch that as the name suggests is opaquely white.
What are the essential characteristics of Shuzokotekimai (酒造好適米)?
- Large in size (千粒重 thousand granule weight 25-28g) - Presence of "white heart" (shinpaku) - Low amount of protein and fat - Good water absorbing ability - Hard outside, soft inside
What is seimaibuai (精米步合)?
The process by which the rice is polished or milled.
What is the danger of polishing the rice too quickly?
Milling too fast breaks the kernels and overheats the rice.
What is Seimai (精米)?
Seimai is polishing the rice.
What is the highest degree of milling the rice?
- 19%
What are the 2 types of rice polishing?
- Original rice polishing - polished to a ball - because the grain is oval, this means that more of the top and bottom are polished away than the sides
- Flat rice polishing - more modern technique where an equal thickness is polished way from the surface so that the grain has shape of rugby ball; there’s more starch and less protein left.
Name the main types of Shuzokotekimai.
- Yamadanishiki (山田錦)
- Gohyakumangoku (五百万石)
- Miyamanishiki (美山錦)
- Omachi (雄町)
- Ginpu (吟風)
Describe Yamadanishiki (山田錦).
- From Hyogo (兵庫) (80%), but also Fukuoka (福岡)
- Birth: 1923; naming: 1936
- “King of sakamai”
- Especially suited to highly aromatic fragrance of daiginjo; nose of banana.
- Tall grain (1.5-1.8m), vulnerable to strong wind, need a lot of care, require high temp difference.
Describe Gohyakumangoku (五百万石).
- From Niigata (新潟), but also Fukui (福井) and Toyama (富山)
- Birth: 1938; naming: 1957
- High occurrence of shinpaku
- Good flexibility after steaming, good for Kouji making
- Quiet nose but the taste is strong.
Describe Miyamanishiki (美山錦).
- From Nagano (長野) and Akita (秋田)
- Birth/naming: 1978
- Large in size, high occurrence of shinpaku
- Withstand cold climate
Describe Omachi (雄町).
- From Okayama (岡山) and Houkidaisen (伯耆大山)
- Discovery: 1859
- “Grandfather of sakamai”
- Large size and large shinpaku
- Earthy taste
Describe Ginpu (吟風).
- From Hokkaido (北海道)
- Birth: 2000
- High occurrence of shinpaku
- High latitude rice
- Fresh taste
Describe Aiyama (愛山).
- From Hyogo (兵庫)
- Birth: 1949 (parents: yamadanishiki and omachi)
- Large in size and large shinpaku
- Complex fragrant nose (like burgundy), need decanting and breathing
- Taste has good structure like omachi
Describe Hattannishiki (八反錦).
- From Hiroshima (廣島)
- Birth: 1978; naming: 1984
- High occurrence of shinpaku
Describe Dewasansan (出羽燦々).
- From Yamagata 山形
- Birth: 1985
- Round and heavy granule, large shinpaku
Describe Koshitanrei (越淡麗).
- From Niigata 新潟
- Birth: 2004 (parents: gohyakumangoku and yamadanishiki)
- Can endure high polishing rate
How does water affect taste of sake?
- If soft water, more clean and semi-sweet; more fragrant, mellow and feminine.
- If hard water, more dry and acidic; rich and persistent flavour; well-fermented, more mineral, structured, powerful and masculine.
What is hard water?
- Contains more amounts of potassium and phosphorous
- dGH (German hardness) is 8 and above (soft is less than 4; medium soft is 4 to less than 8).
Which minerals are undesirable for making sake?
- Iron
- Manganese
Which area in Japan is famous hard water?
- Miya water of Nada (灘の宮水)
Nada region of Hyogo {兵庫}, half of which sits in Kobe
Which area in Japan is famous soft water?
- Fushimi region of Kyoto (京都伏見)
- Shizuoka (静岡)
- Niigata (新潟)
- Saijo region of Hiroshima (広島西条).
What is koji (麹)?
- Koji is a fungus (aspergylus oryzae) which secretes enzymes called gluco-amylase to digest the large starch molecules and turn them into glucose, in a process known as saccharification.
- Yellow koji is used for sake making.
Describe a koji room.
A Koji room is built from cedar wood and the interior is maintained at 35 Celsius and 85% humidity.
What types of yeast are used for fermentation in sake production?
- Cultured yeasts, developed from ambient yeasts.
Does yeast propagate quickly?
- Yes
- Doubling in 2-3 hours under proper conditions.
Names of common yeasts used in sake making.
- Kyoukai yeast (協會酵母)
- Flower yeast (花酵母)
Name the various grading of sake based on the polishing ratio.
- Futsu shu (普通) - no minimum polishing
- Junmai (純米) - no minimum polishing (2005)
- Honjozo (本釀造) - 70% or less remaining
- Ginjo (吟釀), Junmai Ginjo (純米吟釀) - 60% or less remaining
- Daiginjo (大吟釀), Junmai Daiginjo (純米大吟釀) - 50% or less remaining
Describe the process to prepare the rice after milling and before putting in koji room?
- Wash the rice (洗米)
- Soak the rice (浸漬)
- Steam the rice (蒸米)
What happens in a koji room?
- After steaming the rice, the rice is cooled down to about 30 Celsius, and 20% of the rice is put on a table (called a toko) in a koji room.
- Koji is sprinkled over the rice for saccharification and let sit for 2 days.
- After 2 days, the rice becomes crystallized and is used to make the shubo 酒母 (yeast starter) using a small tank.
Name the four methods to make the shubo (酒母) yeast starter.
- Sokujo method (速醸)
- Bodaimoto method (菩提酛)
- Kimoto method (生酛)
- Yamahai method (山廢)
Describe the Sokujo method (速醸).
- Most common method invented in 1909.
- The crystallized koji rice is mixed with water and yeast, and the brewer introduces lactic acid to increase acidity in the mash - to prevent the formation of unwanted yeast cells and bacteria.
- Takes about 2 weeks to complete.
Describe the Bodaimoto method (菩提酛).
- Started during Kamakura period (1192-1333).
- Uncooked rice is soaked in water to help produce a natural lactic acid fermentation procees.
- Takes about 30 days.
Describe the Kimoto method (生酛).
- Traditional method, using long poles to vigorously mashing the mixture, thereby introducing oxygen and help lactic acid to develop naturally from natural lactobacilli.
- Takes about 30 days.
- Starter will have high levels of amino acid, and the sake will be dry with a rich and gamey character and usu lemon in colour.
Describe the Yamahai method (山廢).
- Started in the Meiji era (1868 – 1912).
- Brewers raise the temp of the water to allow lactic acid to develop on its own.
- Takes more than 14 days.
- Sake is usually lemon in colour and fuller body.
What is the process for creating the main fermentation mash (moromi 醪) after the shubo is ready?
The shubo (yeast starter or yeast mash) is moved to the main fermentation tank, and more water, steamed rice and koji are gradually added to make the moromi in a three-step process known as Sandan-jikomi
(三段仕込み):
- Day 1 - 1st addition called Hatsuzoe (初添) (20%)
- Day 2 - Odori (踊り) (dancing ferment - day of rest)
- Day 3 - 2nd addition called Nakazoe (仲添) (+30%)
- Day 4 - 3rd addition called Tomezoe (留添) (+45%)
What is multiple parallel fermentation?
- In the moromi, the koji converts starch in the rice to sugar (saccharification) while, at the same time, the yeast converts the sugar to alcohol (alcohol fermentation).
- This unique “multiple parallel fermentation” enables sake to have the highest alcohol content of any non-distilled beverage in the world.
- It also produces up to 5 times more amino acids than wine.
How long does the process of multiple parallel fermentation take?
- 8-15 days at a temperature of 11-13 Celsius.
- By the end of the process, the alcohol content of the sake will be about 20%.
Describe the various cultured yeasts used in sake making.
- No 7 - strong in fermentation, mellow flavour, and create light and fresh tasting sake. Most widely used yeast, but for normal sake, not ginjo.
- No 9 - characteristic banana and strawberry aroma of ginjo, and vivacious flavour. Classic ginjo yeast.
- No 10 - low acidity, characteristic aroma of ginjo green apple. Ferments well at low temperature.
- No 1601 - newer yeast and developed by Gekkeikan brewery
- # 7 and #9 are most popular and #1601 is getting more popular.
When and how much jozo-alcohol (釀造 アルコール) is added to make ginjo, daiginjo and honjozo?
- After the fermentation process is completed, jozo-alcohol, which must NOT exceed 10% of the rice used, is added.
- It will directly affect the fragrance and shelf life but will NOT increase the alcoholic effect.
- The alcohol content of jozo-alcohol is around 30% and is made by distilled rice or sugar cane.
What are the steps of making sake after fermentation?
- Pressing
- Filtering
- Pasteurizing
- Maturing
- Adding more water
- 2nd pasteurizing
- Bottling