A diligent person is diligent wherever he goes.
The grandmother and granddaughter talked as they worked. Qiu Yuling curiously watched her grandmother grind the barley and peas with the stone mill.
"Grandma, why don't you grind it a little finer? Isn't it for eating?" Qiu Yuling dipped her finger and found that it was still in small particles.
"You don't need to grind it into flour. This is fine. It's used for mixing with koji."
"What is a song? What is it used for?"
"For making vinegar."
The grandmother and grandson asked and answered each other, and the old lady kept working. She mixed the warm water into the powder, and kept mixing until there were no lumps of white core. Then she asked Qiu Yuling to wash her feet and press it into dough.
He put it in the jar, covered it with grass and said, "This will take about a month to ferment. You need to turn it over frequently."
"Now that the song is done, what do we do?"
"Once the koji is ready, add the appropriate amount of warm water, break it up and stir it for later use."
After washing her hands, grandma continued, "Grind the sorghum into flour, add half the amount of water to moisten the ingredients for most of the day, from morning to afternoon. Then, steam the moistened ingredients until they are steamed, turn off the heat and simmer for another half an hour, then add one and a half parts boiling water and stir evenly. Now it's time to put it in the pot and simmer until it's cooked through."
"One to one and a half means 1.5 times." Qiu Yuling scratched her head and asked her grandmother. There were some words she didn't understand.
"Yes, that's what you mean. Add the well-seasoned kaoliang to the koji, mix well, then add cold boiled water to start the alcohol fermentation. The ratio of kaoliang to water is five to three, and the fermentation temperature is around 30 degrees Celsius. There's still a lot of work to do in the meantime."
"Ah? It's not over yet?"
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