I fought back after reselling my engagement

Hu Erlang and Su Zhen are learning alchemy. Su Zhen will select the following from Xue Heng's study: "Dongyuan Continent Medicinal Catalogue", alchemy techniques, and a collection of alchemy recipes, and print them for Hu Erlang, making them into three volumes. The first volume has the most content and is rich in pictures and texts.

The first volume, Wan Yao Pu, is from the content of the first volume of "The Alchemy of Dongyuan Continent" collected by Feng Ji. The next two books are all photocopied books in Xue Heng's study.

This was what Xue Heng meant. In Feng Ji's "Alchemy", there were several elixir recipes that were created by Feng Ji himself. Feng Ji passed them on to her. If she passed them on to others without Feng Ji's consent, it would be against the rules of cultivators and would create cause and effect.

There is such a book as "Wan Yao Pu", but Feng Ji's version is more exquisitely produced; the last two parts were earth-level elixir books in Dongyuan Continent back then.

Feng Ji's "Alchemy" is of the immortal level. The several sets of books he collected are all of the immortal level.

Hu Erlang studied according to the three books. The alchemy furnace Su Zhen gave him a top-grade spiritual alchemy furnace, which could be used to refine even seventh-grade elixirs. The first thing Hu Erlang refined was the Bigu Pill, as Bigu grass seeds were the easiest to find; then came the first-grade spiritual beast pill.

After refining six batches, he finally made the Bigu Pill. Then he succeeded in refining the Spirit Beast Pill with the third batch.

Outside the south gate of Fox Hill, the Fox Lord Linghu Sanlang opened an inn with the transformed demons and spirits from the Xiangnan Forest. The inn did not serve wine and food, but pills. Only low-level pills were available for sale, and those who wanted to buy high-level pills had to make a reservation in advance.

Su Zhen gave the fifth-grade and above elixirs to Fox Lord. According to the rules, the profit was split 20% to 80%, with Fox Hill getting 20% ​​and her getting 80%. If the other party provided medicinal materials, the profit would be split 70% to 30%, with Fox Hill getting 70% and her getting 30%.

All creatures in Fox Hill worked together to build the inn outside the south gate of Fox Hill, and it took only one month to complete. With the inn and the storefront, other transformed species in Fox Hill were able to open food shops, grocery stores, etc. here.

The seventh-grade formation took eight months to complete, and another two months to perfect it. After the formation was set up, it was activated, and the formation boundary wall was formed.

She set up entrances and exits on all four sides, and erected four stone tablets or boulders, including "Fox Hill North Gate" and "Fox Hill East Gate".

Su Zhen set up a third-grade nine-turn heaven-and-earth formation for the place where he lived, including the hot spring pool a hundred feet away, and named his cave: Wei Yu Tai.

There is only one way in and out of Weiyutai, which is a gate she made. There is a pair of stone lions on the side of the gate. There is a golden plaque on the door with the three characters "Weiyutai" inscribed on it. There is also a couplet on both sides of the gate: "Phoenixes gather at the tung flowers to the crimson palace; cranes carry peach fruits from the red mountain."

Wei Yu Tai, Wei Yu Tai, the fate has not arrived so we have not met, Wei Yu, Wei Yu.

On his way back to the snowy mountains, Su Zhen passed by the capital of Northern Liao and went to the place where the gold mine was discovered. The alchemy workshop inside had already been built and heavy troops were stationed to guard the surroundings.

When Su Zhen came over, "Fairy Shu Zhen is here! Fairy Shu Zhen is here!"

All the people in the alchemy workshop came out in full force and gathered on both sides of the alchemy workshop door, kneeling on the ground.

Su Zhen landed at the gate and said, "Everyone, get up. I will only teach the entire teaching process twice at most. Craftsmen and alchemists in the workshop, follow me!"

Everything in the workshop was built according to what she said.

With great attention from the Northern Liao court, the Empress Dowager and the Emperor keeping an eye on it, and important officials supervising the construction, it was completed in one year.

Ancient alchemy usually has five steps:

The first step is grinding: first put the ore into a water mill, crush the large pieces of ore by hydraulic force, and then grind it into powder with a stone mill.

The second step is panning: the ore powder is placed in water and washed, sifted and rinsed repeatedly to leave the powder containing gold.

The third process is pelletizing and sintering: the gold-containing powder and rice are kneaded together to form pellets, which are then layered and piled up with charcoal to remove the sulfide sulfur and sintered into crisp ore pellets.

The fourth process is lead reduction smelting: the lead in the ore is mixed and smelted, and chemical replacement is carried out to form lead blocks containing gold and silver.

The fifth process is the ash blowing method: placing the gold-containing lead block on the ash to smelt it, blowing in oxygen to remove the lead in the lead block. Blowing away the ash can harvest high-purity gold.

What Su Zhen taught was the most suitable alchemy method for this dynasty. After the fifth step, she added her own alchemical techniques. Real gold is not afraid of fire. Now it is just refining. After refining with her techniques, the purity of gold can reach 98%. There is no pure gold. To be able to reach this standard was already a great achievement in ancient times.

She made gold ingots. Nowadays, gold and silver are weighed and have no fixed shape, so she specially made molds for gold ingots and made them according to the shapes of later generations. There were gold ingots weighing one or two taels, and some weighing five taels.

There are words engraved on the bottom of the gold ingot, in two languages, Da Qi and Northern Liao. The upper one is Northern Liao and the lower one is Da Qi: "One tael of real gold made by the officials of Northern Liao", "Five taels of real gold made by the officials of Northern Liao".

Su Zhen also presented a balance scale he made himself and explained the wonderful uses of the balance. There are weights on it, which can be accurate to grams. Put the two kinds of gold ingots on it and weigh them, no more, no less. One liang is 50 grams, and five liang is exactly 250 grams. If you are unsure, you can weigh it first and then pour it into the mold.

Real gold can be made into official seals, jewelry, and can also be used as circulating currency. Real gold is also called gold because of its yellow color.

She then instructed everyone how to crush the gold ore, and then instructed the workers to use sieves to filter the yarn and gold. Each of the five steps was performed by a craftsman, and the most critical step was the last one.

After on-site instruction and teaching, half a month later, the entire alchemy workshop was able to operate by itself. Su Zhen bid farewell to the alchemy workshop and headed for the snow-capped mountains. When he arrived at the Fairy Lake, he went to the textile workshop to check. Bei Liao had gathered the strength of all craftsmen to build human-operated spinning machines and looms. Some weavers had already woven cloth, but the cloth was too thick, as thick as a medium-coarse sweater.

In traditional technology, especially in the textile industry, Northern Liao was far behind the South. She took out the prototype, but the ones made by the other party looked crude.

Su Zhen proposed several improvements and drew images of making cowhide and sheepskin boots and shoes. She asked them to build a leather shoe workshop and she then taught them the skills of making leather shoes.

In another workshop, a lot of cotton was piled up, some of which was purchased from Da Qi and some of which was grown by themselves.

Su Zhen took out a cotton spinning machine and a loom and operated them on the spot, spinning and weaving. However, even though there was a demonstration, the thread woven by the spinner was several times thicker than what she spun.

The people of Northern Liao are rough, but weaving is a delicate job.

"Everything requires hard practice. Cotton is fine cloth, not coarse cloth. The thickness of the thread directly determines the thickness and fineness of the cloth. If it is not up to standard, continue to spin, so that the craftsmen can make more cotton spinning machines."

She didn't expect them to improve, just to copy and do what she said.

She found someone who was proficient in farming and explained on the spot the techniques of cultivating corn, potatoes, and sweet potatoes, and the intermittent tillage technology. There were pictures and explanations. She didn't care how much they understood, because there were always smart people among them, and they understood everything through discussions with each other.