When the two county magistrates started to mobilize goods, Zhang Xuan had breakfast and came to the backyard again. Wei Wu and his party had finished eating, the fire had been lit, and a primitive stove was formed between three large stones. The stacking of firewood seemed to be very particular, and the result was that the firepower was relatively concentrated.

Between the big stones, thick yellow mud is used to supplement them. After burning, they will dry and harden. Such a stone stove can withstand high temperatures, but it is very brittle. Ordinary people can kick the stove a few times and break it.

The thin black girl was using yellow mud to repair the stone stove. Wei Wu used a stone axe to repair a stone container that looked like a pot. Zhang Xuan found that the thin girl was not weak at all. He took it casually and a piece of yellow mud weighing dozens of kilograms was accurately filled. He wiped it with both hands, as if he couldn't feel the temperature in the stove, and smoothed the yellow mud in a few strokes.

There are not one stone stove, but three, and the styles are different.

Under her operation, the mud and stone stove had been repaired in less than a quarter of an hour, and you can use it after the new mud is dried.

"Who are you?" Zhang Xuan asked.

"Maid, Wei Shijiu." The thin girl was very dirty, couldn't see the color clearly, and her voice sounded sweet.

"My master, Wei Wu is good at picking up children and going home. Most of them cannot support them. Now there are only two people who have grown up. Wei Shijiu is one, who is learning the job of a coppersmith.

"Oh..." Zhang Xuan responded. Nowadays, picking up children is a kind act. The Zhang family picks up every year. They dare not pick up too much. They really can't afford to raise them. After picking them up, they will take care of their health and find ways to send them out. They are all raised by their own family. The Zhang family does not have this strength.

Girls learn to cast copper?

Copper casting is indeed high-tech, but it is a heavy physical work that ordinary men cannot withstand. In Zhang Xuan's original memory, there are only three famous female copper smiths in history, two of whom are sword casting masters and the other is weapon casting masters.

In a world like the Great Zhou where information is extremely backward, it is not easy to get the word "famous". Famous sword-casting masters need famous swords, and the same is true for artifact-casting masters.

It’s okay to say that bronze ware is a weapon, but Zhang Xuan really doesn’t like it. The main components of bronze should be copper, tin, zinc, and there may be a small amount of lead. Adjust the corresponding proportion to smelting the weapon. If there is too much lead, it will be softer, and if there is too much zinc, it will be brittle.

In short, no matter how exquisite it is, Zhang Xuan looked down on it. He must be hard and not hard, tough and tough, and the sharpness is also very poor.

Of course, there are exceptions. In Zhang Xuan's previous life, there was a brass sword that was unearthed more than 2,000 years ago, which could easily cut through human hands. From a professional perspective, Zhang Xuan analyzed that when he was refining a copper sword, he was lucky and mixed with other ingredients to achieve that effect.

In fact, you can tell by looking at the composition of the bronze sword that because the processing technology is too primitive and the temperature does not meet the standards, the materials use metals with low melting points. No matter how much the formula is modified, the quality of the alloy obtained in the end is not much better.

As for the so-called famous swords, they are all accidents. The sword caster has hair and nails, and it is useless even if you throw yourself into the furnace.

The biggest difference between science and primitive lies in the summary. After the summary, the science and technology can be repeated continuously. If you hand over the ancient bronze sword to Zhang Xuan, and give him enough funds, equipment, and manpower, it won’t take long to copy the so-called famous sword, and no problem with one hand.

The question is, who would have spent money to buy a bronze sword in his previous life? The market is too small and not worth investing in.

Seeing everyone busy, Zhang Xuan had a clear understanding of Dazhou's smelting technology. The maximum temperature of the firewood used in the fire source is only 1,300 and 400 degrees.

The melting point of copper is above 1,000 degrees, and it can naturally melt. This requires the distinction between the inner and outer flames. The melting points of metals such as lead, zinc, and tin are very low, and a few hundred degrees are enough. Iron is more troublesome, and it takes 1,500 degrees above, and firewood cannot melt iron ore.

While Zhang Xuan was thinking, Wei Wu changed something in his hand. A large black and gray bowl was enough to hold the heads of two adults. Wei Wu fiddled with it very carefully, and took out some plaster from time to time to repair the slightly damaged bowl.

"Graphite crucible?" Zhang Xuan quickly walked to Wei Wu, grabbed a handful of rough plaster and rubbed it between his fingers for a few times. Yes, this is definitely graphite, with traces of processing, and it still contains a lot of impurities.

After being surprised, Zhang Xuan smiled. Seeing this play made Zhang Xuan feel a little close. In fact, natural graphite is not uncommon, and it is found in many schist and gneiss, and the content is not low.

The purified graphite is processed into a crucible, a tool that was also very common in previous lives, and the demand is quite large. The crucible in front of him has too many impurities, which is not useful in his opinion. Think about Dazhou and technology, the graphite crucible in front of him, which contains a large amount of impurities should be classified as a high-tech product.

"My little brother, this is a black petrified copper furnace." Wei Wu said cautiously and a little stubbornly. Among the copper casting line in Lanxian County, he was the ancestor, and no one knew better about bronze ware than him. He could not only cast bronze ware, but also a good hand in casting bronze swords. Just to save trouble, Wei Wu never cast swords.

In the coppersmith business, the skill of casting tools allows him to be superior. If he has the skill of making swords, it will be more troublesome. Not only are he often transferred to serve, but he will even go to war with the army when there are many wars.

Casting tools are free, and making swords will lose this freedom.

In Wei Wu's opinion, understanding sword-casting techniques is not as simple as having a job, and it can save lives at critical moments. No matter how much you hate your enemy, after the war, the first person you pick out is a craftsman. Sword-casting masters can live well in any country, provided that you have to work honestly and be controlled by others.

After a day of hard work, the stone stove was ready until it was dark, and all kinds of supplies were piled up in half of the backyard. Zhang Xuan looked at it with a headache. He just wanted to fry an egg, but it was so troublesome.

Turning around and entering the kitchen, looking around, Zhang Xuan wanted to cry. It seemed that wanting to eat fried eggs was not just a problem with the pot.

The kitchen is not ordinary simple, and it looks very dirty. The two-bite cauldron is not completely copper. The Zhang family is not as wealthy as that. The three legs of the cauldron are stone pillars, and there can be traces of polishing on it. The cauldron is not big, and the large cauldron can only burn a lamb leg, but it uses a lot of copper materials, at least dozens of kilograms.

Zhang Xuan only saw two kinds of seasonings, one was a piece of salt with black yellow, and the other was a soup with a hint of oil. From the original memory, Zhang Xuan knew that in fact, only salt was the seasoning, and the soup with oil was only available after cooking the meat. It was stored for up to two days and was prone to rot and deterioration and must be eaten as soon as possible.

Without oil, can dry scrambled eggs work?

The person responsible for cooking was a thin old woman in the mansion. Zhang Xuan knew that in Dazhou, you really couldn't judge your age based on your face. The difference was even more exaggerated than opening a beauty filter in his previous life. It was normal to dare to call an old woman at the age of thirty.

"Is there soy sauce?" Zhang Xuan asked, the old woman was confused. What was that?

"Is there jealousy?" Zhang Xuan asked again.

"There should be oil?" Zhang Xuan was almost desperate.

The old woman nodded quickly and shook her head again. The old woman who cooked rice was also a part-time job, and half of herb was to cook and the other half was to spin a mandarin.

"My uncle, the mansion has not purchased oil recently, only some oil soup." The old woman replied carefully. Her status is very low in the Zhang mansion, and she is only a maid who is stronger than a slave.

"Where is the candy?" Zhang Xuan continued to ask unwillingly.

The old woman shook her head, but she couldn't understand the young master's words.

"Sweet." Not to mention sugar, I'm afraid I don't even expect brown sugar.

The old woman understood this sentence and carefully took out a can and opened it for Zhang Xuan to show it. A sweet fragrance wafted out, not sugar, but honey. There was a shallow layer under the can, at most half a bowl of it.

After walking around the kitchen, Zhang Xuan saw the stone mortar and stone pestle, he understood why the corn he had eaten in the past two days was so unpalatable. This is the tool used to remove the millet, and it cannot be removed cleanly. The corn cooked with some of the husks is really arousing the throat.

The rating of the raising this time was downgraded by Zhang Xuan again. He wanted to be a salted fish, so why is it so difficult? He couldn't eat, and it was difficult to sleep. He had to wash his poop when he was stool. He wanted to read this book and it was a physical work...

In the next three days, Zhang Xuan watched the process of casting copper pots throughout the process, and endured that he did not express his own opinions. Wei Wu's craftsmanship was good, and Wei Shijiu was very strong, but he ate too much. Zhang Er had a big opinion on this and even reported to Uncle Ma, but Uncle Ma had no reaction.

Zhang Xuan saw the problem from the first day. Inadvertently, his thin body would burst out with power that was far beyond ordinary people. This is very abnormal. A minor girl could eat three pounds of corn in one breath, even if there was no oil and water, her appetite was quite amazing. Zhang Xuan saw more information, and he could be sure that Wei Shijiu was suppressing the desire to eat. Three pounds of corn were far from her real appetite, and it was possible that even if it exceeded one.

Wei Wu also had three kilograms of rice at a meal, which was not too eye-catching. After all, he was an adult male and did heavy physical work such as casting copper. It was normal for him to eat more than ordinary people.

Obviously, Wei Shijiu took Wei Wu's appetite to eat. Wei Wu ate a few bowls, and she only ate a few bowls, not even a bite.

In the Great Zhou world, in addition to what Zhang Xuan knew, there were some unusual things in his previous memories. Zhang Xuan had been wondering whether the things in his memory were real or myths and legends?

In addition to the normal three people of the people, including scholars, farmers, and merchants, there are also two lower-class people of maids and slaves. Without the working class, there were too few craftsmen in the Great Zhou Dynasty and they could not form a separate class, and most of them were part-time jobs.

In addition, there is also the martial arts rank, which is the lowest in the ninth grade and the highest in the first grade, and it is said that there are also the legendary super rank. The most common ones in the story are Zhou Taizu and his nineteen brothers, and Zhou Taizu is a first-class warrior.
Chapter completed!