Li Yuanjia's ultimate goal, of course, is 70 percent alcohol.

That is, disinfectant alcohol.

Although the medical use of this thing is very limited, it is the most economical way to disinfect it in this day and age - yes, the easiest way he can think of sterilization is alcohol.

Iodophor and iodine wine or something, he didn't dare to think about it.

Even if the configuration of iodine wine is a little simpler, where does he get natural pure iodine? No concept at all.

So the only hope is alcohol.

In fact, conventionally speaking, 60 to 95 percent of alcohol has a sterilizing and disinfecting effect, but between 70 and 75 percent has the best effect.

Forty-degree liquor can't meet Li Yuanjia's needs at all.

So after telling Han Shan that he needed stronger wine, and that the stronger the better, Li Yuanjia wine let them play freely. Anyway, the method has already told them, whether it is the improvement of distillation equipment or the control of temperature, it is up to them to explore it themselves, even if Li Yuanjia personally participates, I am afraid that he may not be able to do better than them.

As the head of the family, he just has to wait for the results.

However, when he was about to leave after receiving the order, Han Shan hesitated for a moment and asked, "King, this wine is so fierce and transparent, what if ...... Ahem, I mean, if you take it out and sell it, there will be a lot of people willing to buy it in winter, right? ”

"Huh? Take it out and sell it? ”

After listening to Han Shan's words, Li Yuanjia was stunned for a moment, and then his eyes became strange when he looked at his housekeeper.

This old antique, this is a proposal to let the palace sell wine?

It's rare!

It's just that Han Shan didn't know what Li Yuanjia was thinking at this time, and thought that his words had made the king unhappy, so he hurriedly slapped his face twice with his hand in fear: "The king forgives the sin, Han Shan is too talkative!" ”

"Hehe, it's okay."

Li Yuanjia naturally didn't blame his old butler, just smiled and waved his hand and said, "I'm just a little surprised, you can actually think that this kind of wine will be popular in winter...... Hehe, but this wine consumes a lot of food, and if you brew it and sell it aggressively, I'm afraid there will be trouble! ”

The world is big, and the grain is the biggest.

In any feudal society, food is the most important material.

Distilled liquor is good for everything else, but the grain consumption is too great, plus the loss caused by the poor process, the food consumed by a pound of wine is often several times or even ten times that of other alcohol! For Datang, who has just been founded for only 20 years, this price may be a bit too much.

If he brewed it rashly, Li Yuanjia was afraid that he would be put on a copy of ginseng, let alone take it out and sell it.

It's not that Han Shan doesn't understand this, but he didn't think of it for a while, so he immediately nodded and said, "The king is very worried, it's Han Shan's recklessness!" ”

"Huh."

Looking at Han Shan's slightly regretful look, Li Yuanjia's heart moved, and he suddenly smiled: "Actually, it's not impossible to do this, but ...... Let's talk about it later! You continue to make wine and see if you can make it stronger, and I'll see how it happens later! ”

In the blink of an eye, Li Yuanjia thought of a possibility.

If he, an idle prince, rashly uses a large amount of grain to make wine, it will definitely cause criticism, and even the "upright" imperial history may have to refer to him. But what if the order is given by the emperor, and it is still good for the Tang Dynasty?

So with a move in his heart, Li Yuanjia raised his eyebrows and asked, "Han Shan, how big is the tea garden in Jiangnan now?" How much tea can be produced per year? ”

Although there was some surprise that the king would suddenly ask about tea, Han Shan still immediately replied: "Back to the king, the price of land in the mountains and mountains in the south of the Yangtze River is cheap, and the king attaches great importance to this tea, so he has already bought more than 4,000 acres!" If tea is produced every year...... Now I'm afraid it's only more than 2,000 catties! ”

"More than 4,000 acres, more than 2,000 catties?"

After listening to Han Shan's words, Li Yuanjia was stunned for a moment.

Is the yield of tea so low?

Right?

Even if he doesn't know much about how much tea can be produced in one acre of land, if he only has this output, the future tea farmers will not lose money? And when the roasted tea was sent two years ago, it didn't seem to be the same statement, right?

Han Shan naturally nodded in this regard, and immediately gave an answer: "King, the main thing is that most of the tea trees are newly planted, and it will take a year or two to harvest them." ”

“…… I see. ”

Rolling his eyes, Li Yuanjia smiled self-deprecatingly.

He knew that tea trees could not be planted to produce tea that year, but Li Yuanjia forgot that most of his thousands of acres of tea plantations were bought last year and this year. Even if enough people are hired locally, the tea trees planted will not be harvested in the same year.

So after pondering for a while, Li Yuanjia waved his hand and said: "Okay, I know about this matter, let them take care of these thousands of acres of tea plantations, and this king will be of great use in the future!" ”

"Yes, King!"

After nodding his head, Han Shan hesitated for a moment, and then asked, "Then this distilled spirit, we ...... it?"

"Don't stop, keep brewing!"

With a narrowing of his eyes, Li Yuanjia said indifferently: "While trying to brew stronger wine, keep the brewed wine for me!" Before the winter of this year, prepare at least 200 altars for me......"

……

Just when Li Yuanjia was secretly preparing for the future of tea and liquor, in the Yankang room in the southwest of the palace, Li Tai, the king of Wei, was having a conversation about him in his mansion.

"Father, was this Tianzhu number created by King Han?"

After doing another addition problem correctly, Li Xin was overjoyed and pulled Li Tai's sleeve and asked. It was usually very difficult to learn mathematics, but after using this Tianzhu number, it suddenly became easier, which made the little prince interested in the uncle that his father said.

"King Han? Of course not! ”

Shaking his head with a smile, Li Tai's chubby face was full of love at this time: "It is said that it is a Tianzhu number, naturally it was created by Tianzhu people, and King Han is just a ...... Well. ”

Although he is only ten years old this year, as the son of the Tang Emperor, Li Tai may be really "talented", and he gave birth to his eldest son Li Xin early. He has Li Xin's age, so Li Yuanjia couldn't help crying when he knew - when his uncle was still working as a "monk" behind closed doors, when his nephew's son could make soy sauce, do you say angry?

However, although he is not very old, Li Tai cares for his eldest son.

So when he was studying the math books he brought back from the Han Wangfu every day, Li Xin saw it and yelled to learn, so Li Tai spent a few days teaching him, but he didn't expect this little guy to learn faster than him!

Halfway through his words, Li Tai suddenly stopped.

Frowning slightly, King Wei suddenly felt a little strange: since his eleventh uncle made it clear that these numbers were learned by him from the book passed from Tianzhu, then why had he never seen them, or even heard of them?

Squinting his eyes, Li Tai suddenly had some doubts in his heart.

But after thinking about it for a while, Li Tai quickly put aside this little bit of caution, lowered his head and asked with a smile: "Xin'er, do you think that the math taught by the teacher is easy, or is it easy for the father to teach you?" ”

Li Xin did not hesitate to do this, and immediately nodded his little head: "Of course it is easy for my father to teach!" “

"Haha!"

Looking at his son's innocent appearance, Li Tai suddenly laughed, and then patted Li Xin's little head happily: "In this case, my father will ...... in the future Ahem, I'll teach you math when I have time. ”