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Zhao Lian had nothing to do left and right, and had a strong interest in planting sweet potatoes, so under Zhao Luan's personal involvement, a small nursery was set up in the yard, and ten sweet potatoes were seeded and seedlings were raised in the yard.

Mao Geng received a flying pigeon from Lin'an a few days ago, Mao Geng received a good news, that is, after Chen Liang read the letter he left, and the mobilization of Wen Yuan, he finally decided to cross the sea to Zhancheng, which should have been on the sea ship sailing to Zhancheng.

The flying pigeon transmission system was finally opened twenty days ago, from Lin'an to Xinhua, from Lin'an to Penghu, with the opening of the two flying pigeon transmission lines, Mao Geng's feeling is much better, although there is still a big gap with the information age at any time, but there is finally a fast means of communication, Lin'an and Xinhua life's major events, will not take three days to be transmitted to Mao Geng through guò flying pigeon transmission here. Today's flying pigeon communication is still a fly in the ointment, the information from Xinhua has to be transmitted through Lin'an, and Lin'an flies to Penghu carrier pigeons, or habitually to rest in Quanzhou, I believe that soon after, Xinhua to Penghu through train opened, the transmission of information will not be more than two days.

Mao Geng was called by Zhao Lu again this day, and Zhao Lu would go to the nursery where sweet potato seeds were raised every few days, counting on the sweet potatoes to suddenly sprout. Disappointingly, the nursery has so far been silent. For sweet potatoes that have not yet sprouted, Mao Geng always comforts Zhao Luan: those who can sprout, those who can sprout. But Zhao Lu asked too many times, and Mao Geng himself was also a little lacking in confidence, worried that if it really didn't sprout, then he would have to ask the aborigines to guide the planting of sweet potatoes, and his foreign appearance would be great. However, Mao Geng believes in science and believes that sweet potatoes will always sprout, just a little earlier and a little later. But Zhao Lu was obviously a little crazy, in order to escape Zhao Luan's constant questioning every day, Mao Geng had to think of other ways to divert the attention of this imperial grandson.

On this day, Mao Geng invited Zhao Lu to his laboratory, which is a few inconspicuous bungalows, where Mao Geng not only does some experiments, but also trains his disciples here. But today, Zhao Lu only felt that Mao Geng's behavior was extremely mysterious, and he didn't know what Mao Geng invited him to see in order to let him see some novel things.

Mao Geng just said that he invited Zhao Lu to come to see a magical demonstration, in fact, it was not a magical thing, but this matter was placed in the Song Dynasty, which was still surprising.

Zhao Lu saw two large porcelain bowls on the table, Mao Geng poured water into one of the porcelain bowls, and then added brown sugar to the porcelain bowl, kept stirring to dissolve it, and after it was fully dissolved, the whole bowl of sugar water turned crimson, Mao Geng said at this time:

"Guogong, this bowl of sugar water is crimson now, wait a while, I will make a way, and this bowl of sugar water will be transparent."

Zhao Yan sighed:

"Is there such a thing?"

However, there are too many magical things brought by Mao Geng, and Zhao Lu already believes in it in his heart.

Mao Geng took advantage of the situation and said:

"Guogong, today I specially invited Guogong to come and see this secret, Guogong should not reveal it. This was originally a way of making money for Taiwan, not only for the lower officials not to lose the gambling contract, but also for the Guogong to achieve great governance in Taiwan, and also to ask the Guogong to agree to the lower officials, so that the lower officials dared to show it to the Guogong. ”

Zhao Lian listened to the first half of the sentence, and still had some scruples, after all, this is a bet with the emperor's grandfather, although even if Mao Geng wins, it is all happy, but his own emperor and grandson seem to be helping the emperor's grandfather, but after listening to the second half of the sentence, he suddenly realized that if he wants to establish immortality in Taiwan, he should support Mao Geng, and said with a smile:

"Mr. Mao doesn't have to worry, I'll keep the secret for you."

Mao Geng heard this, his heart was determined, and he poured the activated charcoal that had been prepared into the crimson sugar water, in Zhao Lu's opinion, the bowl of sugar water was originally crimson, Mao Geng claimed to make the sugar water transparent, but now he added black and slimy things to the sugar water, so not only can it not be transparent, but it will turn black, such a simple truth Mao Geng doesn't understand! But obviously, Mao Geng didn't mean to entertain himself at all, not to say that Mao Geng didn't have the guts, Mao Geng has always been meticulous, today's matter, it's not a trick!

But as Mao Geng kept stirring the sugar water, a miracle was born, and the original crimson color of the sugar water slowly faded, and after a while, the sugar fruit really began to become transparent. Until the sugar water became completely transparent, Zhao Lian still couldn't believe it, no matter how he looked at it, he felt that Mao Geng was playing a trick.

Mao Geng then poured the transparent sugar water in the bowl into another bowl, and only black and slimy things remained in the original sugar water bowl.

Zhao Yan couldn't take his eyes off it, hoping to gain insight into some kind of mystery in Mao Geng's tricks, but Mao Geng smiled:

"Guogong, the next step is simple, Guogong, please see, this bowl of transparent sugar water will turn into white sugar in the next step."

Mao Geng poured the transparent sugar water into an iron pot prepared in advance, and then lit a small fire underneath. Soon after, Zhao Lian saw that there was a white salty substance slowly precipitating, and the low heat was slowly boiled until the water was completely boiled dry, leaving only a layer of thick and transparent liquid at the bottom of the pot, as the fire was extinguished, this layer of thick slurry liquid turned into a crystal solid, Mao Geng managed to pound it, and all of a sudden the pot became a crystal like salt.

Mao Geng stuck some white chips in the pot with his fingers, tasted it, and said:

"Guogong, please also try it, this is the white sugar that the lower officials said."

Zhao Lian also stretched out his fingers, stuck two grains, put them in his mouth, and after tasting them, he nodded and said:

"Yes, it's sweet."

Zhao Lian no longer thinks that Mao Geng is playing tricks at this time, but Zhao Lian raised a new question:

"It's so hard to turn brown sugar into white sugar, white sugar is good, but it's hard to say what kind of price it can be sold at."

Mao Geng is very pleased that Zhao Lian has this economic mind, and people are calculating the cost and estimating the price in their minds at this time, and they are demonstrating the feasibility of making money, hehe!

Mao Geng smiled and explained:

"Guogong don't have to worry, Xiaguan is just demonstrating to Guogong that it doesn't need to be so complicated to really produce sugar. White sugar is much better than brown sugar, as long as white sugar sells higher than brown sugar, it is easy to do with one qiē. In fact, this move by the lower officials is in the hope of finding a way for Taiwan to become rich and strong quickly. ”

Mao Geng said in his heart, I didn't even plan to show this to you Zhao Luan, according to Mao Geng's original idea, he just wanted Zhao Luan to see the finished product of white sugar, and he was not going to let him see any process, but thinking about it, Zhao Luan actually had the same interests as himself at this time, and he should not leak secrets indiscriminately, so he demonstrated the principle of turning brown sugar into white sugar in the original form. But after all, the actual process is very different.

Zhao Luan's interest increased greatly at this point, and he immediately clung to this topic:

"Needless to say, white sugar is naturally better than brown sugar, and the high price is certainly not a problem, but what does this have to do with Taiwan?"

Mao Geng saw that Zhao Lu was like this, so he threw out the hole cards at the right time:

"Taiwan is suitable for planting sugarcane, as long as the government vigorously supervises the planting of sugarcane, within two or three years, it will be able to produce the most and best white sugar in the whole Song Dynasty."

Mao Geng has repeatedly mentioned that sugarcane should be vigorously planted, but most people feel that rice is still preferred. However, today Zhao Lian has seen the technology of Mao Geng's sugar production, and he understands Geng's thoughts a little.