Zhu Biao studied and was educated in Confucianism since he was a child.

reacted at this moment, dragged the boxes by himself, and opened them one by one.

"The prefect of Song wrote to the child, and the village gave a thousand soaps to the palace and a hundred soaps to Ning Guofu.

Another 5,000 pieces of soap, 200 pieces of wine were sold to the palace.

He also said that soap needs oil, and if you trade with foreigners, you need as much oil as possible......"

Zhu Biao explained to his parents that he sold 500 wen a piece in Xuancheng and 700 wen in Nanjing.

Count wholesale to the palace, 200 Wen, and then sell it out in the palace, remember to have oil.

This soap is made of oil, and the oil can be eaten.

"Juhachi, that person is testing us."

After listening to her son's words, Queen Ma thought of many things in an instant.

Zhu Yuanzhang agreed: "He wants to see what we want to do, saying that it is for the palace, mentioning the transaction of foreigners, and finally talking about oil." ”

Queen Ma answered: "If we don't change the oil, if we change, we will follow his arrangement, if we don't change it, what should he think?"

We can't buy it from him, a piece of soap for 400 Wen, sell it in Daming, 500 Wen a piece, and make money in Daming, right?

According to this person's idea, we will buy soap from the village for 200 yuan, and sell it to foreigners at a higher price to change the oil. ”

Zhu Biao felt aggrieved when he heard it, a soap maker, and he still had to persecute and test his father?

"Mother, let's go over and tell them in person? There is a layer in the middle, and no one believes anyone. ”

Zhu Biao didn't choose to arrest someone, he wanted to go over and see the master, and everyone would talk about something in person.

He didn't know that people hadn't thought about temptation and persecution at all, but it was inconvenient to show up.

"Don't worry, ask the foreigner first to see how much money you are willing to pay. Like rock candy, foreigners are not allowed to sell the same thing in Daming. ”

Queen Ma looked at the soap stacked in the box and was in a good mood.

What Daming sold to foreigners, foreigners were not allowed to turn around and sell to Daming, because the price was lower than the retail price.

"Buy oil, and at what price will the oil be sold to the village...... Ay? They also have the surname Zhu? ”

Zhu Yuanzhang said and remembered the surname of the lord of Xiaqiu Village, and the surname of the head of the family was Zhu, and his name was Zhu Yichang.

"I just say, who is so capable of getting the guidance of a master? It's from our old Zhu family.

It is estimated that the person behind it also thinks so, and shows us through the village surnamed Zhu. ”

Zhu Yuanzhang found another support point and made up for his own brain.

The family of three eats, is in a good mood, and the food is fragrant.

Zhu Biao accompanied his father to drink, and Zhu Yuanzhang drank a small cup: "I used to get more jewelry, silver, gold and medicinal materials from foreigners, and I wanted to add oil."

This oil ...... How much oil do you use to make a soap? Two hundred pieces of soap, how much does the village earn? ”

He began to calculate the production cost of the village, if a hundred yuan of oil was made into a piece of soap, wouldn't the village make double the profit?

"Two taels of a piece of soap, I don't think it's much, and I can make a lot of money."

Zhu Biao thinks that it is so expensive to sell elsewhere, and if he lowers 300 Wen to the palace, the profit should not be too high.

Queen Ma glanced at her son: "When rock sugar is sold for 400 Wen, who would have thought that the price of brown sugar would be low?" Maybe soap will earn fifty yuan. ”

"If you earn fifty wen, you will earn fifty wen, rock candy is considered to have robbed him, and when he makes money, isn't he also buying livestock and meat for the village."

Zhu Yuanzhang is generous, and the benefit of fifty Wen is given.

The three of them didn't know how to calculate the cost at all, only Zhu Wentian understood.

Depending on what kind of oil is used, the saponification value of different oils is also different.

After that, we know how much stone alkali is used, and the stone alkali lies in the labor cost and the cost of the surface.

Add the cost of salt and spices to it, and finally you get the whole soap cost.

The village uses rapeseed oil, the saponification price is 0.124, and one gram of oil uses 0.124 soda ash, and the stone alkali is not pure enough.

Water is added to it, and water also accounts for the weight.

The amount of water added can be calculated by the amount of soda ash, but it is not pure, and can only be calculated by the weight of the oil, about 40%.

The price of rapeseed oil is 12 to 16 wen per catty, and the price is different in different places.

In some places, rape is not grown, and it is even higher.

When the rapeseed harvest season comes, rapeseed oil prices are low.

After comprehensive calculation, the cost of a piece of soap is 3.7 wen, and the labor cost is 4 wen.

The cost of unflavored soap is 1.8 cents, and you can buy 2 catties of rice with shells.

The spices bought inside are expensive, and next year Zhu Wentian plans to mix the spices by himself, such as making essential oils for various flowers and distilling them dry.

Coupled with the expansion of scale, there are better tools to manufacture, and the cost is further reduced.

However, the price of adding essential oils is not this price, and it takes a lot of flowers to produce a little essential oil.

It seems to be a simple saponification reaction, but Zhu Wentian has calculated a lot of data to reduce the cost of trial and error.

……

"Bubble, bubble, uh-huh! Hey, hey, hey! ”

On the morning of another day, the villagers killed the pig first under the command of Hanhan, and the pig's blood was not eaten and was put in the pot.

Four fishing nets are soaked inside, this is called a blood net, and the nets of steamed hemp and cotton soaked in pig blood can not rot for a long time.

The net smells of pig blood, which can attract more fish.

The two nets were new, leaving a boat about two feet long, and four fishermen doing the labor.

The four of them were not happy at first, a month belonged to nothing, and if they didn't come, they had to pay food.

Zhu Wentian was reluctant to look at his black face for a month, and his mood was affected.

The boats were idle and wasteful, and the hired people were not responsible for fishing in order to transport things to Nanjing.

If you force them to do it, they have to agree, and they won't work hard!

The lieutenant chief consulted with four people, and gave one person three catties of rice a day, three meals and a place to live.

They need to follow the instructions of the village, such as fishing.

I bought a new fishing net from one of them, and they had it in stock.

Thirty days' rations were given at once, and a cart was sent to take them home, and by the way, they were brought in fishing nets.

The fishermen happily agreed, and this good thing? Earned.

Today they helped to blood the net together, and at the same time learned a hand, soak the net in pig blood, and see if it is good.

If it works, go back to your own home...... Pig blood is not easy to get, see who kills the pig to ask for it, or change it.

The villagers firmly believe in Hanhan, and the village keepers say yes, they must do it.

Wait for the blood to finish the net, hang it up to dry, and it's time for lunch.

The four of them looked at the meal, uneasy, and a man named Zhao Li came to the table of the chief: "Chief, when are we going to fish?" ”

"Wait for the nets to dry for two days." The lieutenant reminded the other party that the net had just been steamed.

"Do you have any other work?" The man asked again.

"Eat first, then talk about it when you're done." The chief understands that the other party sees that the food is good, and if he doesn't eat it, he will be weak.

"Oh!" Zhao Li went back and repeated it to the other three companions.

The three of them sighed and bowed their heads to eat.

The chief glanced at Han Han: "Fishing saves money to buy fish to eat, and knotting rope fishing is getting more and more difficult now." ”

Zhu Wentian grabbed a pig's trotter and gnawed it, chewing on it when he heard it, and his nose made a hmm-huh sound.

"Do you still catch crabs to sell this year?" When the governor talks about fishing, he thinks of the crab basket again.

Last year's fishing and crab selling were a big deal for the village.

Zhu Wentian swallowed the food in his mouth: "Catch, ah! Eat, basket, borrow, hey! Belch! ”

"Lend it to the villagers of other villages and teach them to make crab baskets, hey, hey, hey!" The lieutenant helped to speak up.

"Hmm!" Zhu Wentian nodded and continued to eat.