A post-apocalyptic female soul travels back to the War of Resistance against Japan

The group took the mother and daughter to a fabric shop, where they bought them two sets of clothes each. They also bought some other daily necessities before returning to their rented house.

Ye Wuhen asked Chu Qiao to lead the mother and daughter to their place, which was very close to the kitchen.

Jiang Shunli lived in the gatehouse area, which had two small rooms specifically for the gatekeepers. Jiang Shunli happened to be working there.

After arranging their personal belongings, the woman and her daughter went to find Ye Wuhen and a few others.

Ye Wuhen asked the mother and daughter their names. The woman's husband's surname was Lu, so Ye Wuhen and the others called her Aunt Lu. Her daughter was eight years old and her original name was Lu Chunya. Ye Wuhen and the others did not give her a new name and just called her Chunya.

After a few days, the mother and daughter adapted to the pace of life here and realized that they had made the right move and followed the right family.

When there's something to do, Chun Ya and her mother help out in the kitchen. If there's not much to do, she stays by Zhong Ziling's side to take care of her.

Zhong Ziling is young and very well-behaved. Ever since Chun Ya came and played with her, Zhong Ziling has been smiling more. Chun Ya is a very good older sister to Zhong Ziling.

After settling into their daily lives, Ye Wuhen and the others immediately took the several jars of strong liquor they had bought to the kitchen to refine alcohol.

Although spirits can be made into alcohol, the resulting alcohol is usually an aqueous solution of ethanol containing various impurities, rather than high-purity alcohol in the chemical sense.

The main components of spirits are water and ethanol, and they also contain small amounts of flavor substances such as esters, aldehydes, and acids.

Taking advantage of the different boiling points of ethanol and water (ethanol boils at approximately 78.3°C, while water boils at 100°C), ethanol can be separated and concentrated from spirits through distillation, thus obtaining a higher concentration of alcohol.

Since it was ancient times and there was no professional distillation equipment, simple homemade devices could be used. For example, a pot of spirits could be placed in the pot, and a larger heat-resistant container could be placed upside down on top. The lid of the pot could be tilted, and another container could be prepared to collect the distillate.

After Ye Wuhen and Ye Jinxuan entered the kitchen, they fiddled around for a while. Although Aunt Lu didn't understand what they were busy with, she still helped them start the fire and add firewood.

To increase the alcohol concentration and purity, the liquid obtained from the first distillation is distilled multiple times. Each distillation removes some impurities and increases the relative alcohol content.

However, ordinary distillation methods can only produce alcohol with a concentration of about 95% at most. Moreover, ancient wines were not as strong as modern wines, which made the process even more difficult.

Because the alcohol obtained through distillation of spirits is not pure alcohol, it contains a certain amount of water and a small amount of impurities.

If higher purity alcohol is required, further processing is needed, such as adding desiccants, but where do they get desiccants from?

Although they didn't have a desiccant, they did have Shi Mobai, who possessed water-based abilities. Shi Mobai used his water-based abilities to separate the excess water from the alcohol, leaving only a negligible amount of impurities.

Another day passed, and the alcohol was purified.

They poured a suitable amount of alcohol into the lighter hole and then began experimenting again, this time with great success.

Hard work really pays off, and their efforts over the past few days have finally yielded great success!

Moreover, they produced two types of lighters, one using kerosene and the other using alcohol. The kerosene lighter had a shorter shelf life due to impurities.

However, it should be fine for up to six months. And if any problems do arise, you can always find them to clean it at their small shop. After cleaning, it will be a perfectly usable lighter again.

That's right, they plan to open a small shop in Phoenix City, specializing in selling these lighters, and then hire some people or buy a business talent from a brokerage firm to be the manager here.

For kerosene lighters, you only need to clean out some impurities, which can be easily done by the person who bought them.

After the first batch of lighters is completed, they can try selling them first, and if the results are good, they can continue to make more.

Another type is the alcohol-fueled lighter. This type of lighter mainly uses alcohol, and ordinary people cannot achieve the final purification, so only Shi Mobai can accomplish this.

As for the alcohol issue, they can prepare extra alcohol and store it in the store before leaving, so that anyone who runs out of alcohol fuel in their lighter can refill it at any time!

And this is just the beginning. If they develop other products in the future, they can also sell them in this store.

I believe that by then, their little shop should be quite well-known!