Yan Mingyu made some wood ash from the stove and mixed it with alum. This is the key to coloring. The wood ash contains alkali, and the alum is an aluminum medium. Only by mixing the two in proportion can they become an excellent vector and are the most important thing for dyeing cloth.

The ratio of alkalinity to aluminum media is difficult to grasp. Yan Mingyu conducted countless experiments in the laboratory to master the best ratio. Of course, modern times do not use wood ash and alum. She has prepared a vector that can be used directly, which is very convenient.

Although she was a tech mate in her previous life, she was a truly rich generation. She established a biotechnology company when she was a graduate student. The company was not large in scale, but what was concentrated was the essence. Her company specialized in experiments.

There are a variety of services, including catering, cosmetics, health products, printing and dyeing plants, breeding farms, orchards, forestry, farmland, vegetable plantations, and hospitals for treating people and animals...

All industries related to biology are her potential customers.

For example, mixing the top pot bottom for hot pot restaurants, removing insects for orchards and farmlands, etc. The printing and dyeing formula for purple cloth was studied by Yan Mingyu for a printing and dyeing factory. Although it was just a small case, Yan Mingyu still completed it himself. Fortunately, she liked to do experiments herself, otherwise she would not even have a way to make money now.

Yan Mingyu mixed alum and wood ash into the dyeing liquid and started to burn the soil stove. After the dyeing liquid in the large tank was heated, he could put the embryo cloth in and dye it. The temperature value and the time of cooking and dyeing were very important. Yan Mingyu knew it in her mind that she would not write these things, and she would not learn even if others saw them.

As the steam tumbling, the yard is filled with strange smells, which are a bit pungent. This is the unique smell of purple grass roots. After this treatment, the smell has faded a lot, but it still remains. The smell will be eliminated after a few rinses, and it can also make the color more stable.

Xiao Luo and Xiao Xing both came out, and the smell floated into the room. It was so uncomfortable that they couldn't stay in the room, so the air was still circulating outside. Seeing the heat in the big tank, the mother and son occasionally leaned in with a wooden stick to stir it, with a serious expression.

Yan Mingyu was majestic when she was working. Her students and subordinates dared not provoke her at this time, and they didn't even dare to show off their anger. Although Xiao Xing and Xiao Luo did not understand Yan Mingyu's personality, they did not dare to say anything, and they were even more surprised.

Yan Mingyu is not like Yan Mingyu at all.

Maybe he was really enlightened by the gods?

The heat was getting more and more pungent, and Yan Mingyu got closer, and the steam was so hot that her face was hot. She put the wooden stick in, cooked for a while and then took it out, and touched it with her hands, and it was so hot that it retracted her hands.

Yan Mingyu nodded, withdrew some fire, kept the low fire and continued to heat it up, raised a piece of cloth, stood on a stool and threw it into a large tank to color it, but it was impossible for one person to do this.

"Come here to help!"

Yan Mingyu waved to Xiao Luo's mother and son, not feeling embarrassed at all. Xiao Xing was still making trouble and stood still. Xiao Luo pulled him and glared. Xiao Xing came over, but his face was not good-looking.

I was worried that he would leak the formula just now, but now I let him work. This woman must have deliberately fooled him.

"Hold this stick, my mother and I put the cloth in it. If you keep stirring it, I can't stop if I don't let you stop. Otherwise, if the cloth is dyed, our family will have to drink the northwest wind."

Yan Mingyu deliberately spoke a little more exaggeratedly. Xiao Luo immediately turned his face and stared at Bu with all his attention, for fear of something wrong. Although Xiao Xing was still awkward, he did not dare to relax. The overall situation was the most important thing, and his big man did not care about it like a little woman.

"Mom, you are holding it behind."

Yan Mingyu held a piece of cloth and slowly put it into the large tank. The cloth weighed a lot. It was too difficult for her to hold it alone. It was easy for someone to help her hold it. Xiao Luo did not dare to be negligent, and he held it carefully with both hands. Xiao Xing did not dare to stir it constantly, holding the big wooden stick. After a few stirrings, his hands became sore, but he did not dare to stop.

Because Yan Mingyu didn't say stop.

He was afraid that the family would drink the northwest wind because of his incompetence.

Xiao Xing gritted his teeth tightly, his face covered with water droplets of sweat and steam condensation. The stirring speed was slower, and he couldn't bear it anymore. After living for seventeen years, he had never done such heavy physical work.

When Xiao’s father disappeared five years ago, Xiao Jin was already fourteen years old. He immediately took on the burden of the family and did not let his four younger brothers and sisters suffer. Therefore, Xiao Xing, Xiao Yuan and others were all well protected by Xiao Jin and developed a simple and scheming little white rabbit. Others dig a hole and jumped in.

Yan Mingyu also saw that Xiao Xing was tired, but she didn't stop. She just stirred her hands and would not stop. At most, she would be sore for a few days. She wanted to test Xiao Xing's character. If this guy could grit his teeth and persevere, it would still be saved. If she couldn't even bear this little suffering, she wouldn't bother to take care of it, and let Xiao Xing be plotted and ended up like in the book.

After all, there are hateful things about poor people. Even if the stupid person pulls him out of the pit, he will jump in by himself in the end, wasting her time and energy.

"Didn't you eat? Stir faster!"

Yan Mingyu scolded, but it would be okay to stir it slowly, but she just didn't feel happy to see Xiao Xing.

Xiao Luo stood behind, but didn't see that Xiao Xing was almost exhausted, so he also urged: "Stern brother, hurry up!"

This is a 300-text cloth.

Xiao Xing groaned, closed his eyes and began to stir, forcing himself to forget the soreness of his arms, just thinking that the hands were not his. In fact, the hands were numb and painful, just like they were broken, and it was indeed not his.

"stop!"

Yan Mingyu put a piece of cloth into the big jar and stopped screaming. Xiao Xingru immediately collapsed on the ground when he heard the sound of nature, not caring about any image and etiquette.

"Go and run twice and shake your hands faster!" Yan Mingyu said coldly.

Xiao Xing didn't respond. He just wanted to lie down now and didn't move. The evil woman even asked him to run. She was so cute.

"Go to run!"

Yan Mingyu had an extra whip on his hand, and he whipped a whip above Xiao Xing. The sound of the slap made Xiao Xing tremble all over his body, and his resentment towards Yan Mingyu became even deeper. This poisonous woman definitely deliberately cured him, just because he helped him and didn't help him, he spoke for Wanyi. Humph, a petty vicious woman with a petty vicious woman!

Under the intimidation of the whip, Xiao Xing had to get up and run, which was slower than the snail. Yan Mingyu whipped his p-thigh again, "If you don't run, I will break your leg!"

Xiao Xing jumped three feet high in fear, sweating profusely, and reacted with anger and shame, and couldn't help but shout, "Yan Mingyu, don't go too far. I respect you as my sister-in-law, so I give in to you, otherwise I..."

"Otherwise, what? Do you want to hit me?"
Chapter completed!