"Heat evenly... evenly..."

Looking at the pot in his hand, Old Su suddenly realized that there seemed to be a lot of knowledge in this world that he didn't know...

Two hours later.

The first batch of liquor was successfully distilled.

Xu Yun poured a small glass of the liquor and handed it to Old Su:

"Would you like to try it?"

Old Su took the glass with interest, first observing it in front of him for a while, then bringing it to his lips and taking a gentle sip.

A few seconds later, the little old man raised his eyebrows sharply:

"What strong liquor!"

Upon seeing this, Xu Yun nodded slightly.

The alcohol content of the first batch of distilled liquor could reach about 35 degrees, which was undoubtedly extremely strong liquor for people of this era.

Because it was distilled once, this kind of liquor was also called "Yiguaotou."

That's right.

Yiguaotou.

Many people might not know that Erguotou is not a brand; it actually refers to liquor from a second round of distillation, with an alcohol content between 56 and 63 degrees.

Useless knowledge increased again.jpg.

Xu Yun then took this batch of distilled liquor and processed it further, conducting a second round of distillation.

The second round of distillation took significantly longer than the first, taking a full half-hour to succeed.

Next was the third round...

One hour later.

Looking at the somewhat viscous liquid in front of him, Xu Yun shook his head slightly.

Perhaps due to insufficient equipment preparation, the alcohol concentration after three rounds of distillation only reached about 70%, showing a noticeable difference from 80%.

At this point, it basically meant that traditional distillation methods had reached their limit.

To further purify, one would either use carriers like benzene or use pressure swing distillation.

Or...

Use the prepared sodium bicarbonate and salt that Xu Yun had ready.

Sodium bicarbonate is basically baking soda, mainly composed of sodium bicarbonate.

It is easily soluble in water and slightly soluble in ethanol, easily forming monohydrate or decahydrate sodium bicarbonate.

The composition of salt is simpler.

Primarily sodium chloride, easily soluble in water and slightly soluble in ethanol.

This substance is commonly used as a drying agent in organic experiments to dehydrate solvents.

Xu Yun planned to first use sodium bicarbonate to remove water from the system, then use excess sodium chloride to remove any remaining water in the system.

In this way, the produced alcohol concentration wouldn't necessarily reach 99%, but 95% was still feasible.

Then Xu Yun added baking soda to the alcohol solution, and within a few minutes, a large amount of powdery precipitate appeared at the bottom.

Xu Yun filtered out this part of the precipitate, poured the solution into a new container, added salt, and stirred it to let it stand.

Twenty minutes later.

An extremely pungent smell emerged.

Being a bitter biologist, Xu Yun could basically determine that the target alcohol concentration was at least 95% the moment he smelled it.

Old Su, who was nearby, curiously took a small spoon, scooped some alcohol from the bottle, and bravely tasted a little.

As soon as it entered his mouth, he was choked into a fit of coughing.

After a while.

Old Su rubbed his still burning throat and said to Xu Yun:

"Wang Lin, the alcohol production is complete, so now we should make garlic juice for external application, right?"

However, to his surprise, Xu Yun shook his head:

"Sir, do you remember what I said at the beginning? To completely cure Zhonghou's illness, external application alone is not enough; other methods are necessary."

Old Su blinked and guessed:

"Not external application, so could it be oral administration?"

"Well... you might not know, but the effect of oral garlic extract is very poor, and alcohol would have a detrimental impact on the stomach, so external application is better."

"Then what should we do?"

"...Have you ever heard of intravenous injection?"

.....

Note:

Thanks to Divine Bird Ah Fei and Wang Weihuohua, the boss of the alliance!!

You guys can guess what the needle is, but I doubt anyone will guess it...

Some readers asked why it's a single update, do none of you read the word count...

In the previous book, I explained it. For a better reading experience, I'll combine some chapters, haven't you noticed the subscription price is different?

If you find any errors ( broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.