Xu Zheng looked up and saw a young man walking out of the room, less than himself, about twelve or thirteen years old, who was walking towards him and looking at him angrily.

The young man was dressed in a gray shirt, with short gray hair, a round face, round eyes, and light brown pupils inside. Although the boy is actually not fat, because of his appearance, Xu Zheng's first feeling is that there is a round, fat koala in front of him.

The koala walked up to him and said, "If you don't understand, don't talk nonsense." Citrus was the first of its kind in Zion to be made by my grandfather, and it had not been heard of on the mainland before. What do you know as a child? Winemaking is a profound science. ”

Winemaking is a profound knowledge, winemaking is a profound knowledge, winemaking is a profound knowledge...... It seems that I have heard this many times. As for it...... In fact, it is just a method of making a drink.

Xu Zheng looked at the round koala a little depressed, and said, "Who are you?"

The young man said in an old-fashioned manner: "I am Bonga Rushel Jr. My grandfather was Banga Rushel. I didn't know my grandfather in the imperial capital of Zion, he was a fifth-order brewer. ”

Is there such a profession as a brewer, and this thing is still graded? Xu Zheng was dumbfounded for a while.

And he thought in his heart, and his mouth came out of his mouth. The koala looked at Xu Zheng with contempt and said, "Lonely and unheard." Brewers are definitely tiered. There are only three fifth-order brewers in the city, and my grandfather is one of them. No one can make this citrus liquor except my grandfather. ”

The fifth-order brewer is at this level? Xu Zheng shook his head. Seeing that the other party was a child, Xu Zheng didn't bother to be polite to him, he had always respected the elderly, and he didn't have such a good patience with children, so he immediately said: "Hey, Xiao Bangjia, do you have any koji?" Sell me some." ”

Xiao Banga said: "Yes, but it just doesn't sell." ”

Xu Zhengqi said: "Why?"

Xiao Bangjia said: "You said that my grandfather's wine is not good, I am unhappy, I just don't sell it!"

Xu Zheng was happy and said, "Hey, the temper is quite big." Why, I said this wine is not good, you don't accept it?"

The little koala pouted and said, "You don't know how to make wine at all, and of course I'm not convinced." ”

I don't know how to make wine, and from what I've seen, if I don't know how to make wine, no one in all of Zion really knows how to make wine. Xu Zheng was even happier and said with a smile: "Boy, you said that I don't know how to make wine, okay, let's compare and compare to see who understands better." ”

Little Banga stalked his neck like a little rooster and said, "Come on, don't underestimate me." ”

This kid is quite funny, Xu Zheng wants to tease him more and more, so he said: "Okay, let me ask you, how to choose the raw materials of this citrus wine?"

Xiao Banga said: "Try to choose fruits that are ripe and full. The next product is not necessary. ”

Xu Zheng smiled: "Look, this is what rich people do." In fact, there are only two points required for the selection of fruits, the first is that it is necessary to be ripe thoroughly, and the second is to choose bright colors. The ripe fruit determines the taste of the wine, and the vividness of the color determines the color of the wine. As long as the fruit meets these two pieces, it will do. Even if it is injured, uneven, or even falling fruit, it can be used as a brewing material. ”

Xiao Bangjia made Xu Zheng bluff after bag, this person's statement is exactly the same as what grandpa thinks. Grandpa said the same thing first, because it was a wine that had never been brewed before, in order to ensure the quality, he did not make any other mistakes, and finally chose the best fruit as the raw material for brewing. He looked Xu Zheng up and down suspiciously, does this person really understand? Impossible, looking at the age, at most he is one or two years older than himself.

Suspicious in his heart, Xiao Banga said, "You just blow it." I ask you, what happens after you've selected the ingredients?"

Xu Zheng looked at the child's old-fashioned appearance, and couldn't help but want to tease him, so he said, "Of course, it's to wash the fruit and squeeze the juice." ”

Xiao Banga was suddenly angry and said, "Let's go, there is no koji, let's go!"

Seeing that the child was angry, Xu Zheng stopped teasing him and said, "Don't don't, listen to me." The raw materials should also be prepared with sugar for later use. The fruit must be washed, one is hygienic, and the other is to remove unnecessary miscellaneous smells. When washing, blanch with boiling water for half an hour, and then remove the skin and seeds inside. The seeds must be cleaned because it has a bitter taste that directly affects the taste of the wine. And as for Pi, here's a little secret, would you like to hear it?"

Xiao Banga was fascinated by what he heard, and immediately fell into the trap and said, "Yes." ”

Xu Zheng stretched out a finger: "A koji." ”

Xiao Bangjia glared at Xu Zheng, and saw that Xu Zheng only stretched out one finger and shook it in front of his eyes, and with a smiling expression on his face, he couldn't help but get angry and shouted, "One is one! Remember first, you go on." ”

Xu Zheng smiled proudly and said, "Your grandfather must think that it is best to brew with pure fruit juice, right?"

Seeing Xiaobang nodding, Xu Zheng said again: "In fact, there is an oily substance in the peel, and a large part of the reason why citrus is so fragrant is because of it." Therefore, after peeling off the skin, you can leave a part of the skin and squeeze out the oil for later use, or you can leave a little skin properly and squeeze it with the fruit. The amount should not be too much, as it will mask the taste of the juice and will also make the juice taste bitter. ”

Seeing Xiao Bangjia looking at him suspiciously, Xu Zheng said again: "Then it's time for the official brewing process." This step is collectively referred to as fermentation. Uh, do you know the meaning of fermentation?" Xu Zheng is afraid that like Xiaoban, he doesn't even know what koji is, who knows that the names of these things in the past life and this life are different, so he asked first.

Seeing Xiao Bangjia nodding, Xu Zheng also nodded with satisfaction, it's good to know, it's much easier to communicate. Then he continued: "The first step is to be a wine mother. Needless to say, I guess your grandfather won't know. ”

Xiao Bangjia glared at Xu Zheng unconvinced. Grandpa really didn't go through any step of preparing the wine mother, but who knows if that kid is talking nonsense?

Xu Zheng saw that he was not convinced, and he didn't care about him, and said: "Even if there is no wine mother, your grandfather must have put the juice directly into the wine vat, and then put in the koji to ferment directly." Generally speaking, this process is about 7~15 days, and your grandfather doesn't have a drinking mother, I guess...... Well, it should be around 25 days, right?"

Xiao Bangjia looked at Xu Zheng in surprise, grandpa had indeed fermented for a total of 27 days.

Seeing Xiao Bangjia's expression, Xu Zheng knew that he had guessed correctly, and continued to talk endlessly: "The fermentation process of 15 days at most has been extended to 27 days, although the fermentation has been completed, but it will definitely produce other miscellaneous flavors due to the extension of the fermentation time, which is the main reason why I said that the fermentation is too much." Your grandfather must have judged whether the fermentation was completed by the taste of the wine, and when he felt that the fermentation was completed, he found that the sweetness was not ideal, and added sugar to flavor it. However, after adding sugar, a new problem arises, that is, the taste of wine and grain is not uniform and cannot be mixed well. In order to improve this, it is left again for secondary fermentation to allow the sweetness and sake flavor to blend together. When it was finally finished, due to a variety of reasons, there were more impurities and precipitation in the wine, and it had to be clarified again, which caused a third fermentation. This second and third fermentation is the secondary reason why I say that the fermentation is overdone. After these processes, the final result will be like this, with most of the citrus flavor lost, the taste is light, the sweetness is not enough, the acidity is excessive, and the color is gray, the wine is cloudy, and there are impurities and impurities at the bottom, which are difficult to remove. Am I right?"

Xiao Banga stared at Xu Zheng dumbfounded. God has made him right.

The junior class and the senior class also glared at Xu Zheng, as if they had reacquainted this person again. Even Lu Qi couldn't help but ask, "Xu Zheng, you know so much." Do you really know how to make wine?"

Xiao Bangjia listened to Xu Zheng's words, and slowly became a little convinced, and couldn't help but blurt out: "Then do you have any way to solve it? Grandpa is working very hard." ”

Xu Zheng said: "To solve the problem of over-fermentation, I really have no way. But I have a way to make my grandfather's wine taste a little better. ”

Xiao Bang hurriedly said, "Let's hear it." ”

Xu Zheng was silent, and his face showed that smile but not a smile. At the same time, he put out his hands together, and after splitting ten fingers, he said, "10 koji." ”

"You...... You...... You, you!" Little Banga was annoyed and angry, and cried out, "Go, go, I don't believe you." This wine was created by my grandfather, and you are here to lie to me. "Stretch out your hand to drive Xu Zheng away.

Xu Zheng was also dumbfounded. I didn't expect this kid to be so careless, but he was really angry, and he didn't go now, he didn't go, and he stood in place awkwardly.

At this time, I suddenly heard an old man's voice at the entrance of the courtyard and shouted: "100 koji, plus 100 gold coins!