But there aren't any outside.

So sometimes, in order to avoid being seen, they had to wash their hands with that pig's pancreas...

This thing isn't complicated at all; it's practically a must-have for anyone who travels through time.

Shen Qingyu and Zhao Yuzhu went to town and bought a lot of pork fat to render into oil, and also bought some quicklime to burn...

In just one day, the mother and daughter made the first bar of soap of the era.

Although it looks like those old soaps from the 1980s, neither fragrant nor appealing, it's several times better than pig pancreas!

After the mother and daughter tested it and found it effective, they cut the large bar of soap into several pieces.

One piece was placed in the kitchen, another by the water vat, and a small piece was given to Qi Yunxiao, Xue Juzheng, Wen Che, and the others.

Upon seeing the lumpy object, Xue Juzheng was about to put it in his mouth: "What's this delicious?"

Shen Qingyu quickly pressed down on his hand: "This thing is not for eating, it's for washing hands."

Xue Juzheng: "Hmm?"

"It's the same as pig pancreas, but the effect is better..."

Shen Qingyu gave a demonstration.

Xue Juzheng expressed his disgust: "What's the use of this? You can't eat it..."

Shen Qingyu: "Uh..."

The experimental subject is unsuitable; let's find another one.

Liu Cuixi was pleasantly surprised: "Wow! This laundry detergent is so convenient! It cleans and lasts a long time! I washed a piece of clothing, and the soap didn't diminish at all!"

Shen Qingyu laughed: "How much do you think this thing could sell for?"

Liu Cuixi hesitated for a moment: "This stuff is certainly good, but if it's too expensive, ordinary villagers won't be willing to buy it."

If clothes are a little dirty, you can wash them by beating them with a stick and then wear them.

Coarse cotton clothes are not worthy of expensive items.

Shen Qingyu understood, and the smile on her face faded considerably. She nodded solemnly: "I understand what you mean. Let me think about it."

Think about the future customer positioning of soap.

Should we target the high-end market or the lower-middle class...?