However, it takes a while for bagasse to make wine, so they sent people to buy some small breweries on land and transport them back for direct distillation and purification.

The reason why Yu Xiaotian is in such a hurry to purify alcohol is not to supply it to his subordinates, nor is it to prepare to sell it for money, but the key is in the medical aspect.

In the past, the hygienists and ambulances of the sea wolf, including the infirmary, used spirits instead of medical alcohol to treat wounds, but the alcohol content of the spirits could not reach the purity of medical alcohol, the disinfection effect was not good, and even on the contrary, it may cause infection, and alcohol cotton balls and sterilized bandages sometimes needed medical alcohol.

Therefore, if you want to get medical alcohol, you can only find a way to purify the alcohol yourself and then supply it to the medical center.

In addition, in order to treat the yellow artemisia that can treat malaria, the efficiency of soaking in water is too low, and it is not easy to leach out most of the effective ingredients, so Yu Xiaotian discussed with Dr. Liu and decided to use alcohol to soak the yellow artemisia and extract the usable ingredients from it.

However, in addition to the many impurities in the spirits, there are also the disadvantages of insufficient alcohol content, so it is best to use pure alcohol for extraction.

Therefore, it has become necessary to establish an alcohol preparation workshop, but fortunately, there is not much technical difficulty in this kind of thing, but the glass tube is used as a condenser to replace the original condensation pipe, so Yu Xiaotian immediately began to send someone to do it.

In addition, fortunately, the glass field has now set up a branch in Tamsui, and there is no need to run towards Nanri Island, this kind of thing can be solved on the spot, and the glass field here has the experience of the glass field on Nanri Island, there are many detours, the production equipment is more perfect, and the output is larger, if it is not for the soda ash to become the production bottleneck of the glass field, now he has an annual output of hundreds of thousands of tons of glass, there should be no problem.

Except for the time it took to blow the glass condenser, there were other things that could be solved by the foundry and the carpenter, so soon the alcohol preparation workshop was set up and put into production.

After the first batch of alcohol was prepared, in order to obtain pure alcohol with higher purity, Yu Xiaotian asked the people in the workshop to continue to do it, and at the same time asked people to make two more sets of rectifiers to directly form a continuous distillation operation, so that even if the alcohol from the terminal could not reach 100% pure alcohol, at least more than 95% pure alcohol was no problem.

After the pure alcohol is prepared, it is immediately transported to the medical hall for storage, some of which is blended with distilled water to make medical alcohol, and the other part is used to soak the yellow artemisia.

As for how long it should be soaked to extract the ingredients in the effective treatment of malaria in Artemisia annua, no one knows this, so they can only grope step by step, but this is Dr. Liu's business.

In addition, by the way, Xiaotian also managed to make some alcohol meters, the principle of alcohol meters is actually very simple, using the principle of different specific gravity of alcohol and water, adding a plumb sinker under a hollow glass tube, and then making a scale on it.

The purer the alcohol content, the more the alcohol meter sinks, and the lower the alcohol content, the less the alcohol meter sinks, so that the alcohol content can be determined.

And after the pure alcohol was prepared, Yu Xiaotian could finally let the glass field try to produce an alcohol thermometer.

The alcohol thermometer is no longer familiar to future generations, but it is a glass tube with a small hole in the middle, and there is a small hollow sac that stores alcohol underneath, relying on the principle of thermal expansion and contraction of alcohol to measure the temperature.

This is indeed a bit difficult when making it, and Yu Xiaotian doesn't know what to do, but he can hand over professional things to professional craftsmen to do, and now the glass craftsmen in the glass field are quite powerful, and it is not difficult to make this thing.

As for how to determine the temperature, it's even simpler, the altitude of freshwater is very low, almost even at sea level, and the air pressure is almost standard atmospheric.

The sea wolf has also formed the practice of transporting ice north every winter, and ice cellars have been dug everywhere to store ice, and ice can be used at any time, although it is very costly, but it solves the problem of using ice.

After the alcohol thermometer is done, it is first placed in a vessel mixed with ice water, at this time the alcohol column indicates zero degrees, after marking it, and then put the thermometer into the boiling water, the high point of the alcohol column rises, which is the boiling point of 100 degrees, marked out, and then divided according to one hundred, and the usable thermometer is made.

This thing is very useful, and it can be used in many places, especially in medicine, so it takes a little effort to make it, in addition to satisfying its own needs, this thing can also be used as an export product in the future to earn silver for the sea wolf.

These days, Yu Xiaotian is very busy, and every day he has to take some time to visit the malaria boy who is a guinea pig in the hospital to observe the progress of his condition.

In the first few days, the teenager's condition did not improve much, but it did not deteriorate, and even a little recurred, but he never died, but with the increase in the time of taking the drug, his condition began to gradually improve, the frequency of swinging began to decrease, and the body temperature was not as high as it began to occur.

This situation undoubtedly gave Yu Xiaotian and Dr. Liu a shot of strength, and they were very happy, which can indeed prove that Artemisia annua does have the effect of treating malaria, which made everyone suddenly feel more confident and more convinced that what Yu Xiaotian said was right.

So they continued to insist on treating the boy with Artemisia annua, and at the same time began to give the other patients the medicine soaked in this way.

Then they found that other patients with malaria also had varying degrees of malaria symptoms under control after switching to the medicine made by this method, and the number of deaths began to decrease, and some people improved greatly after taking it for a few days.

This time made Dr. Liu even more excited, including Yu Xiaotian's happy fart, so they stepped up the preparation of alcohol, and began to soak a large amount of Artemisia annua with alcohol, and recorded the soaking time in batches for testing.

The soaked alcohol solution was extracted by natural volatilization, and finally some extracts were obtained, and the extracts were directly given to patients to take a small amount to observe the efficacy of the drug.

This is a long process, because the drug extracted in this way is still very coarse, containing a lot of unused impurities, and the content of each batch of raw materials seems to be different.

At present, Yu Xiaotian can only do this step, if you want to further purify these extracts, then you need to establish a complete set of chemical industry, and medical chemical industry, Yu Xiaotian thinks that he has no such ability, can only rely on descendants to gradually explore.

Moreover, Dr. Liu also found that some raw materials are effective and some are simply ineffective because of different origins, which shows that the same is Artemisia annua, and the artemisia annua grown in a specific area contains ingredients that can treat malaria, but the artemisia annua in some places does not have such ingredients.

There are different collection times, the amount of active ingredients contained in it is also different, so the efficacy of the prepared drugs is also very different, how to determine what season, where, what soil growth of Artemisia annua has the ingredients for the treatment of malaria, this kind of thing is not what Yu Xiaotian can do by himself.

Professional professionals do it, this is the principle that Yu Xiaotian has always adhered to, so let Dr. Liu and the doctors gradually explore.

All in all, the boy gradually began to recover, and the boy already felt that he was going to die, but he didn't expect to be rescued.

When his parents learned the news, they cried bitterly, if it weren't for Yu Xiaotian's lack of time to receive them, they had planned to go to Tamsui City to kowtow to Yu Xiaotian to thank them.

Hearing that the sea wolf was still recruiting new soldiers, his parents immediately decided to send the boy to the sea wolf's new camp as a soldier after he recovered from his illness.

After the most intense perching and inspection, several flying clippers in the boathouse finally descended from the slipway into the Tamsui River together.

The whole shipyard is noisy gongs and drums, firecrackers are ringing in unison, lively and extraordinary, this is the freshwater shipyard since the construction, the first time the ship was launched, so it is very valued, Yu Xiaotian personally rushed to the ship, to participate in the launching ceremony of the ship.

Someone brought in a lion dance team to perform in Chuanliao, and Guo Fu even asked Yu Xiaotian to personally light the lion head of the lion dance team and wake up the lion, and the atmosphere was extremely warm.

Before the ancients built a ship and launched the water, they were accustomed to worship the gods, especially the Mazu Dragon King and the like, in order to seek a psychological comfort, hoping to protect the safety of the ship, even when the ship was launched in later generations, China and foreign countries are also accustomed to have a ribbon-cutting ceremony and other activities, and even some Western countries have to invite priests to pray for their ships.

There is a similarity between Chinese and foreign customs, except that the gods worshipped are different.

Therefore, after the seawolf's boats are built, there will be some celebrations, but in half of the cases, they are not so grand, just because this is the first time that the seawolf's freshwater boats have been built and launched, and this time three boats were built at once and launched together, so it was very grand.

Such an event is naturally a must for Yu Xiaotian, not to mention that he is still in Tamsui Village now, and there is no reason not to participate in such a celebration.