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Steamed sorghum is mixed with a low-temperature daqu starter and fermented as a damp solid for about four weeks in earthen jars buried in the ground, then distilled. The spent grain gets fresh daqu and ferments a second time before a second distillation, and the two spirits are graded, stored and blended. Light-aroma baijiu is clean and fruity, led by ethyl acetate and ethyl lactate.
Fully documentedAlcoholic drinks49 days
Recipe
No fixed amounts recordedIndustrial process with no published batch recipe in the sources used here. One earthen jar holds about 260 L.
Brick starter made from barley and peas[huang2020]
Starter
koji/qu/mold-starter (low-temperature daqu)
Total time across the recorded steps: 49 days
Start
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What changes:The sorghum is steamed on its own, without any old grain
Step 1 of 7
Steam the sorghum on its own (qingzheng)
Time
Not documented
Temperature
Not documented
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Moulds
Saccharomyces
Lactobacilli
Bacillus
Saccharomyces cerevisiae
The fresh grain is steamed without old fermented grain mixed in, unlike mud-pit styles. Output: steamed sorghum.
Flavour
Not documented
Texture
Not documented
Colour
Not documented
Microbes at work in this step
Not documented for this step.
Method
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
At a glance
Steamed sorghum is mixed with a low-temperature daqu starter and fermented as a damp solid for about four weeks in earthen jars buried in the ground, then distilled. The spent grain gets fresh daqu and ferments a second time before a second distillation, and the two spirits are graded, stored and blended. Light-aroma baijiu is clean and fruity, led by ethyl acetate and ethyl lactate. Made in 7 steps over 49 days. The longest step, first fermentation in buried earthen jars (dacha), takes 28 days (Huang X 2020) and runs at 17–30 °C (Pang X.-N 2018). Saccharomyces cerevisiae, the main ethanol maker and Pichia kudriavzevii and Saccharomycopsis fibuligera do most of the fermenting.
Light-aroma baijiu ferments in pottery jars buried in the ground, not in the mud pits used for strong- and sauce-aroma baijiu. The fresh sorghum is steamed on its own, and each lot of grain is fermented and distilled only twice.
The style was first called "Fen aroma" after the Xinghuacun Fenjiu distillery. Fenjiu was named one of the "Four Famous Spirits" at the 1952 National Alcohol Appraisal Conference. Production at Xinghuacun pauses in July and August because heat lowers yield and quality. The year runs in three periods, starting with Lipai in September.