"Okay, let me try, it shouldn't be difficult." After hearing this, Bo Jue ran to Jenny's spinning machine and started tinkering with it.

Half an hour later, Bo Jue successfully increased the number of spindles to thirty, and the amount of cotton yarn spun increased significantly!

Gu Heng quickly asked Bo Jue to tell several craftsmen who were making spinning machines about this method, and then asked several craftsmen to follow Gu Yanwu to the textile workshop to modify the existing Jenny spinning machines and add spindles to them.

Thirty.

After explaining everything, Gu Yanwu also took the craftsmen to the "Daotian" textile workshop. Gu Heng couldn't help but ask Bo Jue next to him: "Can the perfume that has been made by pressing method be mass-produced?"

"A batch has been made in batches. Xiao Gu, do you want to take a look?" Bo Jue asked.

Gu Heng nodded and followed Bo Jue to a large pile of wooden boxes. He opened the wooden boxes and found that many of the porcelain bottles contained citrus-flavored perfume made by the pressing method last time, but some bottles even contained jasmine-flavored perfume!

At first, Gu Heng thought he smelled it wrong because Gu Heng did not tell Bo Jue to use the pressing method to obtain jasmine essential oil and then make perfume.

But after Gu Heng smelled it a few times, he realized that he was not mistaken. It was indeed the scent of jasmine! Gu Heng couldn't help but ask Bo Jue: "Brother Bo, how did you make jasmine perfume?"

"It's a coincidence that this is not the season when jasmine flowers are blooming. One day I went for a walk in the mountains and accidentally found a large field of jasmine flowers. I thought that the flowers were very fragrant. I might as well try the pressing method to see if I could make a perfume.

." Bo Jue told Gu Heng.

"So you use the pressing method to make these jasmine perfumes?" Gu Heng asked in surprise. Because in Gu Heng's memory, the pressing method seems to be rarely used to extract the fragrance from the petals.

"It was made by pressing method at first, but it takes a long time to extract jasmine essential oil by pressing method. Later I tried another method." Bo Jue said.

"What method?" Gu Heng asked quickly.

"I put fresh jasmine flowers in oil to absorb the fragrance. Then I put the oil into a wine-making tool and heated it at high temperature to separate the jasmine oil. However, the extracted jasmine oil smelled very unpleasant.

I tried using many other things to dilute it, and finally found that it was better to dilute it with high-concentration wine. After constant attempts, I got a fixed proportion ratio and finally made a jasmine-flavored perfume." Bo Jue said slowly.

Come.

Gu Heng was shocked after hearing this. Bo Jue accidentally used the distillation method to separate the jasmine oil. Moreover, after refining it, he discovered that the jasmine-flavored perfume could be obtained by diluting it with alcohol. He also got a fixed

The dilution ratio is amazing!

Gu Heng secretly felt that he was so stupid. Why didn't he think that distillation technology was used to make wine in ancient times? But now that Bo Jue has discovered it, he might as well tell him some plants that can use distillation to extract fragrance.

Thinking of this, Gu Heng said to Bo Jue: "Brother Bo, you are so smart. I never thought that you can use wine making method to extract essential oils, but now you have reminded me, and I have thought of some methods that can be used to extract essential oils."

Plants from which essential oils are extracted using wine-making methods.”

"What is it? Tell me quickly." Bo Jue was very excited about exploring new knowledge, and his eyes were shining.

So Gu Hengxian briefly explained to Bo Jue what distillation was and how distillation was used to produce wine in the wine making process. Bo Jue quickly understood.

Gu Heng continued: "You can also use water distillation. When distilling in water, the raw materials are always submerged in water. The water dispersion effect is good and the distillation is more uniform. Water distillation is suitable for some larger flowers, such as roses.

; Broken peels and raw materials that are easy to stick together. However, this method may not be used for individual spice plants. You have to try it before you know."

"Rose flowers seem to be rare in our Jiangsu and Zhejiang areas. They are more common in some places in the north. They can be used as medicine. They do have a strong fragrance." Bo Jue proposed some practical situations.

Hearing this, Gu Heng thought for a while and looked around outside the window. At this time, a gust of wind happened to blow, and the fragrance of the Lingxiao flower in the yard also hit his nose. Gu Heng suddenly had an idea!

"Brother Bo, come and see, is this Lingxiao flower bigger? And its fragrance is also very strong, and it smells very comfortable."

"You mean, we can try making Lingxiao flower perfume?" Bo Jue reacted.

"Yes, you can try it. In addition, I will tell you a distillation method to help you try to use more fragrant plants to make perfume."

"Oh, what is it? Tell me quickly." Bo Jue asked impatiently.

"There is also a water distillation method. Water distillation is also called water distillation: the raw materials are placed on a sieve plate in the distillation pot, and a certain amount of water is placed under the sieve plate to meet the needs of the distillation operation to generate enough saturated steam.

, pay attention to the height of the water layer so that when the water boils, it will not splash and wet the bottom layer of raw materials." Gu Heng explained.

"What are the benefits of doing this?" Bo Jue asked.

"The raw materials are only in contact with steam, and the low-pressure saturated steam generated has a high moisture content, which is beneficial to the evaporation of essential oils, and is also beneficial to shortening distillation time, saving fuel, and improving oil yield and oil quality." Gu Heng further explained.

"What kind of aromatic plants can this water distillation method be used to extract essential oils from?" Bo Jue asked curiously.

"Water distillation is widely used. Aromatic plants such as mint, citronella, and eucalyptus leaves are all distilled by water to extract essential oils. This method is also suitable for crushed dry raw materials including sawdust and some shade-dried flowers and plants. The dried materials are distilled during distillation.

It needs to be soaked in water before use to allow the material to absorb water." Gu Heng introduced.

"Then your water distillation method may be used to make rose perfume!" Bo Jue thought while holding her chin.

"Didn't you say that there are no roses in Jinling?" Gu Heng frowned and asked in confusion.

"But all major drug stores sell shade-dried roses, because roses themselves can be used as medicine," Bo Jue explained.

Only then did Gu Heng suddenly realize, and he secretly admired Bo Jue again. He thought so much, so widely, and so well. He was worthy of being a master of scientific research in the late Ming Dynasty!

Then Gu Heng and Bo Jue discussed the details of how to modify the wine-making tools into water distillation, as well as what should be paid attention to in the water distillation method. Bo Jue was very confident that he could make it. Gu Heng was very happy and asked by the way: "Glass

Is there any progress?"

Bo Jue shook his head and said helplessly: "There is not much progress yet, but I will still continue to study."

"It's okay, Brother Bo. Don't tire yourself too much. Pay attention to the balance between work and rest. Your health is the most important thing. In addition, I will send someone to notify Brother Gu later to pick up this batch of perfume and sell it in the textile workshop." Gu Heng warned.

"Yes, I will." Bo Jue replied seriously.

"That's good. It's getting late, so I'll go back to Meilou first."
Chapter completed!