Liu Guanzhang, Li Mengxi, and Xiao Brick, the five of them should have rolled out five strands of twine.

However, when the thread was twisted to form a rope, Liu Bei took the twine that Li Mengxi had twisted and threw it on the stone table with a smile. The twine that Li Mengxi had twisted was really not good.

Then, the three strands are cut into a rope, a hemp rope about 30 centimeters and as thick as the middle finger. After twisting it, this is lamp twisting.

In Zhang Fei's eyes with great pity, Li Mengxi threw the hemp rope directly into the wine jar, then covered the wine jar and soaked the hemp rope in the wine.

Three to five minutes later, Li Mengxi opened the wine jar and reached out to fish it out.

Take the fire fold again and light it.

It doesn't matter. The fire spread directly to the wine jar along one end of the hemp rope, and the flames suddenly jumped into the wine jar.

The blue flame suddenly ignited and almost burned Li Mengxi's eyebrows.

Li Mengxi hurriedly retreated, so frightened that he felt that the high-strength liquor in the wine jar was burning so fiercely that it would explode!

Li Mengxi picked up his brother and ran away.

After running for two steps, "Run!" Li Mengxi shouted at Liu, Guan, and Zhang, telling them to run too.

Liu, Guan, and Zhang looked at Li Mengxi in surprise, who was running away with his head in his arms. These three heroes looked at the bomb as if it were nothing. They saw Guan Yu with a normal expression. He brushed his beard with one hand and picked up the straw rope hanging on the edge of the wine jar with the other. He picked it up and threw it away.

On the stone table.

Then, he picked up the lid and clicked it on the wine jar.

After a few moments, Guan Yu opened the lid again, took a look at the altar, and said, "It's gone." Guan Yu turned to look at Li Mengxi who ran a few steps away, and said calmly.

You can imagine how embarrassed Li Mengxi was at this time.

The fault is that we are modern people who understand science. When a fire breaks out, they will run around like rabbits in fear. They don’t know how to remove the fire source first and then cut off the air.

Li Mengxi put down his younger brother, lowered his head and walked back with a stern expression.

Walking to the stone table, Li Mengxi pretended to be calm and said, "I wanted to use wine instead of oil to make a lamp, but I didn't expect the alcohol to ignite so quickly."

Liu Guanzhang understood what Li Mengxi wanted to do.

Guan Yu Danfeng narrowed his eyes and smiled, "Xi'er, if you want to make a lamp, you will need a lampstand to twist the lamp."

Guan Yu picked up the straw rope, pointed at one end of the straw rope and said.

Li Mengxi frowned and thought, and suddenly realized which step he had forgotten.

If just a wick is placed in the wine jar, the flame will follow the wick and burn directly into the wine jar.

For example, the mouth of an alcohol lamp is very small, and the wick is bound by the mouth of the lamp. Therefore, only the part of the wick that is exposed to the outside will burn when it comes into contact with the air. The wick below is tightly stuck to the glass.

It's tight and won't burn if it doesn't come into contact with air.

In other words, if you need a lampstand or a thin wooden board, drill a small hole in the middle, and pass the wick through the small hole, this will work.

After figuring out what happened, Li Mengxi looked around and saw the lid covering the wine jar.

Generally, wine jars are covered with linen cloth, tied with ropes, and then a layer of yellow mud is pasted on the outside to complete the sealed structure.

Li Mengxi was lucky and brought a wine jar with a wooden lid.

Li Mengxi then fixed his eyes on this cover. It would not be appropriate to drill a hole in such a cover to make a lampstand.

But when I think about it, there is another shortcoming.

The lid is made of wood. When the wick is burned, it gets close to the wooden lid and burns the lid.

So, it still doesn’t work.

Unexpectedly, I thought it would be easy to do it with just an alcohol lamp, but I didn’t expect it to be so troublesome.

Applying a small piece of yellow mud about one centimeter long to the middle part where the wick contacts the wooden board solved the problem perfectly.

Li Mengxi slapped his head and said, "I'm going to get some yellow mud."

With that said, without waiting for Liu, Guan, and Zhang to react, Li Mengxi stood up and went to find Huang Ni.

"I'll go too!"

The younger brother ran out after him, holding his elder brother's hand and asking them to go look for mud together.

Liu, Guan, and Zhang had been tossing with Li Mengxi for a long time. After watching Li Mengxi leave, Liu Bei smiled and shook his head, "Xi'er is still young. It might not be appropriate to be obsessed with clutter."

Zhang Fei and Guan Yu nodded in agreement.

What is clutter? It’s just playing with things to lose one’s ambition. The ancients despised technology too much.

Li Mengxi came back with yellow mud in his hand, and then Liu Bei and the other three saw him. Li Mengxi threw the half-dried yellow mud on the table.

"General Guan, please lend me your sword."

Guan Yu took out the short sword from his waist and handed it to Li Mengxi.

Li Mengxi took the knife, then stood and awkwardly used the knife as a chisel, pricking the wooden cover bit by bit.

Seeing his clumsiness, Zhang Fei couldn't stand it anymore. He grabbed the knife with one hand and punched it dozens of times, then he cut a hole in the wooden cover.

After he finished chiseling, Zhang Fei threw the wooden cover onto the stone table.

The lampstand had been poked by Zhang Fei, so Li Mengxi first threaded the straw rope onto the wooden cover, and then left only a knuckle length on one end of the straw rope. Below this knot, another knuckle length was left.

Paste a circle of semi-dry yellow mud, then place the wooden cover on the wine jar and cover it. Only two knuckles of the straw rope are left outside. The upper knuckle is the wick, and the lower knuckle is the wick.

A layer of yellow mud is applied between the wick and the wooden cover.

This improved alcohol lamp uses a wine jar as a container, a hemp rope as a wick, a wooden cover as a lampstand, loess as an insulating structure, and then a fire to ignite the straw rope.

The straw rope ignited with blue flames.

The flame burned erratically and burned out shortly after.

This... why?

The fire is too low? Is it because the alcohol content is not enough?

Trying to recall the chemistry knowledge in junior high school, it seems that the alcohol lamp contains an alcohol solution with a concentration of 95%.

And now, Li Mengxi couldn't measure the concentration of the distilled liquor in this wine jar.

There are references.

The current method of steaming wine with the head and tail removed is commonly known as the Erguotou process, and the alcohol content of Erguotou seems to be around 60 degrees.

Ninety-five percent off, a little off.

Li Mengxi thought for a moment, "I'll go back and steam it again."

——

Li Mengxi held the wine jar and returned to the city.

It was already evening when he returned.

The method of purifying alcohol, Li Mengxi thought of, is to repeat the distillation method, use wine with a temperature of about 60 degrees as raw material, continue to distill, remove part of the water vapor, and obtain a wine with a temperature of more than 70 degrees, and then use the wine with a temperature of more than 70 degrees.

, re-distilled to obtain higher altitude.

With this repeated distillation method, the alcohol concentration can be gradually increased, but it cannot be close to 100%.

I vaguely remember that after alcohol reaches a certain concentration, distillation will produce an azeotrope, which means that no matter how distilled, there will definitely be some water in the alcohol.

At this time, a water-absorbing substance is needed, which is quicklime. When the wine reaches above 80 degrees, add some quicklime. The quicklime absorbs the water in the alcohol and turns into calcium hydroxide. The water is absorbed away, and the alcohol can reach the concentration.

More than 95 percent.

Since he had to add lime, Li Mengxi suddenly discovered that the still he made was defective.

Why steam spirits? There are three purposes now. One is to brew fine wine. The second is to make some higher alcohol to be used as medical alcohol. The third is to use alcohol lamps to give to military doctors for acupuncture.

Utensils, so as not to burn the candles used by military doctors and make the acupuncture black.

It's no good if the candle doesn't burn fully. Anyway, Li Mengxi couldn't stand acupuncture and it burned black and then gave people injections.

When steaming the wine you drink, you must not add lime.

To distill wine into three different products, at least three sets of stills are needed.
Chapter completed!