It doesn't seem like much, but if you consider the purchasing power, it's quite scary. According to the current prices, one stone of rice costs 700 fen, which means that 120 kilograms of rice only costs 700 fen.

The foreign debt owed by the Dongchang Hou Mansion can buy 124,000 shi of rice, which is 14.91 million jins when converted into kilograms.

Qin Hao was speechless. He had seen cheating on his father, but never such a cheating on his son. If he hadn't asked, he wouldn't have known that he had become a second-generation negative.

No, he has to make money, otherwise this debt will fall on him in the future.

Of course, Qin Hao was not too panicked. As a time traveler, the most important thing he lacked was the means to make money.

"Mother, can you give me some carpenters and blacksmiths?" Qin Hao thought for a moment and said to Qin Liu.

Qin Liu asked in confusion: "Brother Hao, what do you want with these?"

"Of course it's to make money!" Qin Hao said seriously.

Mrs. Qin Liu burst out laughing: "You kid made me happy again."

Qin Hao didn't speak, but looked at her seriously. The smile on Qin Liu's face gradually solidified, and she said hurriedly.

"Brother Hao, please don't let your mind wander. Mother has to figure out how to deal with money. At worst, she can still make ends meet by selling some dowry. You are a scholar, how can you manage such a lowly business?"

Qin Hao said seriously: "Mother is worrying too much. The child is only making suggestions. Other production and sales are still handled by the mother. The child will not come forward in person."

"But...why does Brother Hao need some craftsmen?" Qin Liu breathed a sigh of relief and then asked again.

This chapter is not over yet, please click on the next page to continue reading! Qin Hao gave up: "My mother will know afterward."

Qin Liu couldn't resist and had to call several carpenters and blacksmiths from the mansion.

"I have met the eldest lady, little Marquis." Six or seven craftsmen stood cautiously in the hall and saluted, not daring to raise their heads.

Qin Hao asked in a low voice: "Are these people reliable?"

Mrs. Qin Liu nodded: "They are all born in the same family."

Those who are born in a family have been working as servants in the mansion since their ancestors. They hold the deeds of prostitution of their parents and relatives in their hands, so their loyalty is naturally much higher than that of ordinary people.

Qin Hao nodded with satisfaction and led the craftsmen back to his small courtyard.

In the next two days, I heard the sound of jingling bells coming from Qin Hao's small courtyard.

Two days later, a huge iron pot appeared in the small yard. There was also a hand rocker for stirring in the iron pot, a huge wooden barrel, and some molds.

That's right, what Qin Hao wants to do is make soap.

The reason why I choose to use soap is also very simple. Firstly, soap is low-cost to make and easy to mass-produce. Secondly, the demand is high. In the Song Dynasty, the most common washing supplies were saponin. The washing effect of this thing is far inferior to that of soap. This is a piece of soap.

The blue ocean market is highly profitable. Thirdly, there are no rich and powerful people involved in this industry, so you won’t steal anyone’s cake and make enemies with others.

Qin Liu also came over after hearing the news, and saw Qin Hao asking the craftsman to set up an iron pot, add water to it, and then add a bucket of oil sludge. The oil sludge is the precipitate of lard after cooling. The reason why lard was chosen was this stuff.

Cheap.

In the Song Dynasty, the main foods eaten were mutton and beef. Pork was a cheap meat, and only common people would buy it to satisfy their cravings.

Making soap is not that particular. Of course, use whatever is cheap.

Mrs. Qin Liu was confused, and the maids and grandmothers following behind her were also full of doubts.

And as the temperature in the pot increased, an unpleasant smell made everyone subconsciously take a few steps back, and they could only cover their mouths and noses to shield themselves.

Qingmei covered Qin Hao's nose with a handkerchief, while holding her breath. After a while, her chest rose and fell violently, and she couldn't help but cough. The smell was really overpowering.

Qin Hao took her hand away and motioned her to take care of herself. Instead, he walked a few steps closer to observe the situation in the iron pot.

At this time, the temperature in the iron pot was already very high, and the oil sludge had all broken apart and merged with the water. Seeing this, Qin Hao asked the craftsman to pour a large piece of caustic soda into it.

Speaking of which, it took Qin Hao a lot of effort to make this caustic soda. In later generations, this stuff was a chemical product and could be purchased, but in the Song Dynasty, he had to make it himself.

The main costs of caustic soda are "sodium bicarbonate" and "calcium oxide". "Sodium bicarbonate" is baking soda. The method of making it is to mix salt and sugar, then add a certain proportion of flour and a small amount of water, and stir until

It's fine without any moisture.

"Calcium oxide" is actually quicklime and can be purchased directly.

Heat quicklime and react to turn it into lime slurry. Add baking soda and continue stirring. After cooling and standing still, you can obtain caustic soda.

To ancient people who had never learned chemistry, all this was as mysterious as Taoist priests refining elixirs. No one knew what Qin Hao's purpose was, and it was easy to keep it secret.

With the addition of caustic soda, the smell in the air became even weirder, and Qin Liu had almost retreated to the entrance of the courtyard.

At this time, Qin Hao had already asked the craftsman to drive the rocker arm to fully stir the mixture in the pot.

As the water in the pot continues to evaporate, the liquid in the pot gradually becomes thicker and the color gradually turns yellow-brown.

Qin Hao watched it for a while and asked the craftsman to add edible salt and stir thoroughly.

"Extinguishing."

After the craftsman put out the fire quickly, the liquid in the pot gradually cooled down over time.

After almost an hour and a half, the liquid in the pot had become very viscous, and Qin Hao asked the craftsmen to mold the semi-finished soap.

After another two hours of waiting, Qin Hao personally knocked the soap out of one of the molds and handed it to Qin Liu.

Qin Liu touched the soap and it felt smooth and tender, but she didn't know what it was for and looked at Qin Hao with confusion on her face.

Qin Hao asked someone to get a basin of water, and then said to the craftsman who had just watched the fire: "Come here."

The craftsman came over cautiously. Qin Hao pressed the craftsman's hand, put it into water to wet it, and then rubbed his hand with soap.

A magical scene appeared. The hands that were originally full of dirt became extremely clean just by rubbing them gently.

The originally clear water was now turbid, with some soap bubbles floating on it.

"What do you think of this, mother? Will it sell well?" Qin Hao looked at Qin Liu with a smile.

Mrs. Qin Liu's expression changed, and she glanced at everyone present with a stern look: "If anyone reveals a word about today's events, they will be killed along with all their relatives!"
Chapter completed!