Preparation is not all smooth sailing, even if you have a skill in your head, there will still be various problems in the specific operation process.

Zheng Haoyu failed several times in a row, and it was not until the fifth time that the preparation was successful.

In a glass beaker, a black, viscous liquid with a strong, pungent herb smell is prepared. This is the quenching liquid stock solution, which is diluted with water to become a commercially available quenching solution.

Zheng Haoyu completed the experimental notes, and he was quite satisfied. It has been proven that as long as the recipe is mastered and the various variables in the experimental process are controlled, even ordinary people can use modern equipment to prepare it.

It is even said that if conditions permit, it is completely possible to build a quenching liquid production plant for assembly line production!

Next, it's time to check the effect of the quenching fluid, which is an essential part.

Originally, Zheng Haoyu wanted to find a guinea pig to test, but the system told him that the system itself could detect it, and the quenching fluid had been qualified.

Zheng Haoyu is still convinced of the system's capabilities.

In that case, the sale of the business can begin.

A serving of quenching fluid sells for 300 crystals in Blackstone. In a village like Niujia Village, it takes a year or two to save up and buy one.

Generally speaking, the preparation cost is more than 100 crystals. And Zheng Haoyu has a high success rate, so the cost of preparation is about 70 crystals. That is, it can net more than 200 crystals.

It can be said that with this kind of goods alone, Zheng Haoyu's "Earth Department Store" can gain a foothold in Blackstone Town.

At this time, the voice of the system sounded again: "Trigger the mission, small town rich." Requirements: Earn 10,000 crystals within three months. Reward: 500 system points and new system permissions. ”

"New system permissions?" Zheng Haoyu was curious, "What permissions?"

System: "No comment. ”

"I knew you would say that. Zheng Haoyu was helpless, "Okay, let's complete the task first." ”

10,000 crystal coins, not too much, no less. One quenching solution will net more than two hundred crystals, and as long as you sell fifty copies of quenching fluid, the task can be completed.

But the point is that even if Zheng Haoyu prepared fifty parts of quenching liquid, Blackstone Town did not have so much purchasing power. A village only buys once a year or two, and there are at most more than a dozen villages around, plus the population of Blackstone Town.

It's really hard to sell so much in three months.

Moreover, the preparation materials of the quenching solution are not stalls like Qingshen grass, but also some rare medicinal materials, and they may not be able to buy so much.

"We have to use some commercial means!" Zheng Haoyu thought to himself.

At present, there is no reserve fund in the small store. Even if you buy the materials for preparing the quenching solution, you can't afford it.

This is not a problem for Zheng Haoyu. Empty gloves white wolf or something, it's not the first time he's used it.

Immediately, he wrote an advertisement and pasted it on a wooden board.

First of all, there are three big words "good news" on it, which are used to attract the attention of passers-by. Then it reads: "From now on, all customers who spend more than one crystal coin in our store will have a chance to draw a lottery." ”

"First Prize: A small amount of quenching fluid!" (worth 50 crystals!)"

"Second Prize: 100 Years of Medicinal Materials!" (worth 20 crystals!)"

"Third Prize: One Pack of Refined Salt!" (worth 10 crystals!)"

"In addition, our store has a specially invited pharmacist stationed in the store, and everyone who brings the following medicinal materials is prepared...... With the addition of one hundred crystal coins, you can ask the pharmacist to refine the quenching liquid, the time is limited, the opportunity is rare, first come, first refined!"

Cuihua has also vaguely learned a few words with Qiaoqiao in the past few days, and as soon as Qiaoqiao explained, she immediately became a little uneasy.

She asked, "Shopkeeper, don't you want to open this shop?"

"Open, why don't you open it?"

"But why are you sending so many things? That's a lot of money, and quenching fluid...... Cuihua worried.

Who could afford to give away so many prizes? If you really want to do this, it is estimated that the store will close down immediately. That's why she's upset, if the shop closes, they're afraid they'll have to live on the streets again.

Zheng Haoyu smiled and said, "Don't worry, this is just a business method, and you will definitely not lose money, but you will make a lot of money!"

He was sure, but Cuihua still couldn't understand it. Qiaoqiao's little face on the side was also a little confused, and she was thinking about the problem.

This kind of lottery routine of buying things is not used here, but it is not uncommon on the earth. Some of them are invested in advertising, while others are purely to attract customers and make money. Zheng Haoyu is the latter.

First of all, let's talk about the first prize, a small amount of quenching fluid. How small is it? Is it worth fifty crystal coins, this is all up to Zheng Haoyu.

On the earth, some stores claim to give gifts worth tens of thousands, but in fact, the cost is less than ten yuan, and this kind of thing happens from time to time.

He diluted one part of the quenching solution he had prepared into more than a dozen parts, wasn't it just a small portion? If he had a black heart, it could even be diluted to dozens of parts. The quenching fluid in Blackstone Town is originally relatively thin, and it is a free item for the lottery, and the people who get it will not say anything.

But Zheng Haoyu doesn't plan to do that, he still has plans below, and he has to leave a little reputation for himself.

As for the second prize, just add a little bit. The salt for the third prize can be a little more, this thing is not valuable to Zheng Haoyu, but it is more precious to the residents here.

The last time Zheng Haoyu smashed the glass at the stall, he found that people in the two worlds have something in common, they are greedy for cheapness, love to watch lively, and conform to the crowd......

Using this lottery activity, coupled with the gimmick of quenching liquid, should attract a large number of customers to spend, and at the same time make a name for the store.

In this way, you can also prepare for the second event. That is to let customers bring their own medicinal materials, pay manual fees, and let Zheng Haoyu prepare quenching liquid.

This is simply an empty glove white wolf, using technology to make money. Selling quenching fluid alone may not be able to sell so much, and nearby villagers may not have the money to buy it.

But Zheng Haoyu created this convenient environment, prompting them to take out all the medicinal materials and crystal coins they had accumulated and hand them over to Zheng Haoyu.

In this way, Zheng Haoyu directly saved the cost of materials, plus the manual fee, and the money he earned was not much different from before. In a short period of time, he can accumulate the wealth of the villagers near Blackstone Town into his own hands, and at the same time, the villagers have also obtained the scarce resource of "quenching fluid", which is simply a lot of money!

After getting the advertisement, Zheng Haoyu began to make a lottery device again. In order to cater to the habits of the Xuanyuan Continent, he did not get a lottery box, but a "lottery box".

It is similar to the lottery in the temple, containing various wooden sticks with words or numbers on them, so that customers can draw lotteries.

It took half a day, and it was all done. Zheng Haoyu plans to start the campaign the next day to see if this strategy works.