The original repairer

The purification process of the medicinal liquid requires meticulousness. The fewer impurities in the resulting medicinal liquid, the higher the success rate of the pill and the better the quality of the pill.

In theory, a pure medicinal liquid should be free of impurities. If this liquid were used for refining, and the refining technique was mastered, a top-grade elixir could be produced. However, no alchemist could purify a pure medicinal liquid, so the concept of a pure medicinal liquid could only exist as a hypothesis.

It is rare to find an alchemist who can purify nine levels of impurities. The average alchemist can only purify seven levels.

Medicinal liquid with a purity of five levels can be used to refine pills, but they are only low-grade pills.

When the purity of the medicinal liquid reaches 80%, medium-quality pills can be refined.

Top-grade elixirs require a purity of over 90% to be refined.

There are few stories and records about top-grade elixirs.

When Shi Chen refined the medicinal liquid for the first time, he obtained a medicinal liquid with a purity of 60%.

The second time he refined it, he was even more careful and obtained a medicinal liquid with a purity of 70%. However, during the refining process, due to his unfamiliar technique, he failed.

During the third refining, although he purified the medicinal liquid to the seventh level, he still failed to successfully refine the pill.

Shi Chen spent ten days practicing the Spirit Fire Technique until he mastered it.

Then he began to refine the elixir for the fourth time.

With the mastery of the spiritual fire technique and the experience gained from the previous three refining processes, the purification of the medicinal liquid this time reached more than the seventh level, almost reaching the eighth level.

He was already familiar with the refining technique. After half a day, the spiritual fire in the furnace went out, the fragrance of the elixir filled the air, and the fasting elixir was successfully refined.

Shi Chen took out the jade bottle and opened the alchemy furnace, only to see twelve low-grade fasting pills inside, filling the entire furnace.

After putting away the pills, Shi Chen calmed down and summarized the alchemy process.

He discovered that with the Spirit Fire Technique, he had greater control over the temperature of the fire, allowing for precise and accurate manipulation. Fire Spiritual Roots were well-suited to controlling fire spells, allowing for precise control of the entire firepower, increasing the chance of a successful elixir by at least 30%. Wood and Water Spiritual Roots also played a significant role. Wood Spiritual Roots could control the amount of spiritual rice and purify it, while Water Spiritual Roots could control the removal of impurities, further increasing the chance of a successful elixir by another 30%. With mastery of the refining technique, the chance of a successful elixir could reach over 80%.

A first-level alchemist in the Alchemy Hall has only about an 80% chance of success in refining the Bigu Pill. If he is not skilled in refining the Bigu Pill, the chance is only 60%.

Shi Chen felt that he was already comparable to a first-class alchemist in refining fasting pills.

Due to insufficient spiritual power to supply the second batch of pills, Shi Chen had to stop refining the fasting pills and turn to practice other skills.

For the next ten consecutive days, he refined a furnace of Bigu Pills every day, and all ten furnaces were successful. In the last three furnaces, medium-quality Bigu Pills began to appear.

A low-grade fasting pill can help one fast for about three days; a medium-grade fasting pill can help one fast for seven days; a high-grade fasting pill can help one fast for one month; a top-grade fasting pill is relatively rare. According to the alchemist in the alchemy hall, a top-grade fasting pill can help one fast for half a year.

During these ten days, Shi Chen had mastered the art of refining the Bigu Pills. By the fifth batch, he had begun reducing the amount of spiritual rice. By the tenth batch, he had managed to keep the cost down to a standard eighty kilograms of spiritual rice. Each of the last three batches of Bigu Pills produced a mid-grade Bigu Pill.

There are ten furnaces of Qigong pills, with a total of 112 Qigong pills. Three of the furnaces are not full of pills. This happened after the amount of spiritual rice was reduced. The number of pills decreased, the purity of the spiritual liquid did not increase, and the number of successful pills decreased.

Shi Chen had a contract with the Exchange Pavilion, in which he sold six bottles of low-grade Qigong Pills to the pavilion, each worth four spirit stones. The remaining four bottles of low-grade Qigong Pills could be sold at the sect's market. Shi Chen also planned to consume the remaining three mid-grade Qigong Pills and nine low-grade Qigong Pills himself.

Ten mu of low-grade spiritual rice fields were required to be handed over to the sect year-round, totaling 2,800 jin (approximately 10,000 jin) of spiritual rice per season, for a total of 11,200 jin (approximately 10,000 jin) of spiritual rice per year. With Shi Chen's current farming experience, the yield per mu should be over 350 jin (approximately 10,000 jin) of spiritual rice, or 14,000 jin (approximately 10,000 jin) of spiritual rice per year. After deducting the 11,200 jin (approximately 10,000 jin) of spiritual rice, 2,800 jin (approximately 10,000 jin) of spiritual rice remained. If sold directly to the sect, it would only yield 20 to 30 spirit stones (approximately

He used the remaining spiritual rice to refine Bigu Pills. Assuming 80 kilograms of spiritual rice yielded ten pills, with an 80% success rate, he would have about 30 bottles of Bigu Pills. This only counted low-grade pills; some mid-grade pills were not included. At Shi Chen's current success rate of one mid-grade pill out of ten, 30 furnaces should yield three mid-grade Bigu Pills, costing two bottles five spiritual stones, earning him an extra seven and a half spiritual stones.

The second season of spiritual rice in the new year has matured. The yield of the ten acres of spiritual fields has increased a lot this season. It was originally estimated to be 350 kilograms per mu, but after the harvest, it was found that the yield reached 388 kilograms per mu.

He didn't have much spiritual rice left, but Song Yu should have quite a bit. So the day after harvesting the spiritual rice, Shi Chen went to find Song Yu.

"Hello, Senior Brother Song!" Shi Chen greeted him warmly upon meeting him. "I haven't been out for the past six months. I wonder if there's anything major happening in the sect. Does Senior Brother Song know?"

"Junior Brother Shi, there haven't been any major events happening in the sect recently. There are occasional minor incidents, but they are just some trivial matters that will not affect the sect. I wonder what brings you here this time?" Song Yu said with some surprise when he saw Shi Chen coming to visit.

"Junior brother, I don't have anything important to do. I just haven't contacted Senior Brother Song for the past six months. It just so happens that the second season of spiritual rice has been harvested, and I think Senior Brother Song should not have finished harvesting yet. Do you need my help?" Shi Chen said with a smile.

"Haha! Thank you for your kindness, brother. I have already harvested the second season of spiritual rice yesterday." Song Yu said with a smile.

"It seems that Senior Brother Song's spiritual fields are very productive this season?" Shi Chen asked, seeing Song Yu's somewhat joyful expression.

"This season has been the highest yield in recent years, reaching 370 kilograms per mu," Senior Brother Song said happily. "In the past, it was around 350 kilograms per mu, but this time we actually produced over 10 kilograms more per mu, haha!"

"Congratulations, Senior Brother Song, for earning a few more spirit stones. I wish you continued improvement in your cultivation and a smooth journey to the top."

"You are such a sweet talker, just tell me, if there is anything you need, I will definitely help you if I can help you," said Song Yu.

"It's nothing, actually." Shi Chen looked at Senior Brother Song's smiling face and continued, "I've been learning alchemy recently. In the initial stage, I'm practicing with Bigu Pills. Senior Brother Song, could you sell me some of the remaining spiritual rice at the sect's purchase price? I hope you'll agree."

After saying that, Shi Chen took out a bottle of low-grade fasting pills and handed it to Senior Brother Song.

Senior Brother Song looked at the Qigong Pill in his hand, then took it into his arms and said with a smile, "It's just a small matter, why do you have to be so rude? Fine! I promise you. Now, how much spiritual rice do you need to buy?"

Shi Chen happily returned to his house and made a verbal contract with Song Yu. Shi Chen would buy spiritual rice from Song Yu every quarter at the same price as the sect. For every two thousand kilograms of spiritual rice purchased, he would give Senior Brother Song a bottle of low-grade fasting pill.

The next day, Song Yu delivered two thousand kilograms of spiritual rice. Shi Chen did not have spiritual stones to pay the bill, but Song Yu still said enthusiastically that he could owe it first and pay it back after the next season of spiritual rice was harvested.

Shi Chen quickly handed over another bottle of low-grade fasting pills. Senior Brother Song refused for a few times before accepting it calmly.

In addition to practicing and caring for the spiritual field, Shi Chen started working hard on alchemy.