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Hongqu jiu is a red rice wine from Fujian made by fermenting steamed glutinous rice with hongqu, rice grown with Monascus mould. The jar stays open under cloth while the mould and yeast work, then is closed for a longer, airless fermentation; the wine can be aged for years.
Amounts from a sourceA study batch made by the traditional method with hongqu from a Ningde winery (Yan et al. 2024). Amounts are given as shares of the rice.
What changes:The glutinous rice soaks in water overnight
Step 1 of 6
Soak the glutinous rice
Time
Soaked overnight
Reported
Temperature
25 °C
Reported
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Monascus purpureus
Saccharomyces cerevisiae
Aspergillus
Leuconostoc
Monascus
Output: soaked rice.
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
Hongqu jiu is a red rice wine from Fujian made by fermenting steamed glutinous rice with hongqu, rice grown with Monascus mould. The jar stays open under cloth while the mould and yeast work, then is closed for a longer, airless fermentation; the wine can be aged for years. Made in 6 steps over 40 days. The longest step, close the jar for the airless fermentation, takes 30 days (Yan Y 2024). Monascus purpureus and Saccharomyces cerevisiae do most of the fermenting.
Shaoxing wine uses wheat qu and a yeast mother. Hongqu jiu uses red yeast rice, so Monascus colours the wine red and shares the work with the yeast. The jar is first left open under cloth, then closed.
Some Monascus strains can make citrinin, and contamination by other moulds can bring other toxins, so strict food-safety standards and monitoring of safety indicators in the finished product matter. Hongqu wine carried more biogenic amines than xiaoqu wine in one study.
Hazards the sources name: Klebsiella (a main bacterial genus in one hongqu mash; the genus includes opportunistic pathogens); Citrinin, a mycotoxin some Monascus strains can make.
Fujian hongqu rice wine is made mainly in Fujian province with starters containing Monascus purpureus. Yu and colleagues (2025) say Wuyi hongqu has been used as a starter for more than a thousand years. The lees (hongzao) are used in Fujian cooking (Wikipedia).