The menstrual belt is to regularly empty the contents of the plant ash inside, clean the outer "cloth bag" and reuse it;

The refill designed by Su Qingluan can be placed directly inside the "sanitary pants" and thrown away after use.

Of course, if I were to say the only obvious shortcoming is...

"Okay, this 'sanitary pants' you made is very good!" Yang reluctantly stuffed the sanitary belt she had taken into her sleeve and hid it well, "But how much money will all these things cost!" Yang felt very distressed when she saw the white cotton wool being used by her daughter to pad her private parts for a few days.

Su Qingluan also understood Yang's idea. After all, in this era, cotton was still only produced on a small scale - many people didn't even know there was such a thing as "cotton".

After all, with the speed of spread being as slow as a snail, it takes a certain amount of time for any new thing to become popular.

Therefore, the current cotton planting is far from large-scale production, and in some places this crop is even used for ornamental purposes.

It is precisely because of this that the cost of cotton wool is now very high, not even as expensive as some precious silks.

While Su Qingluan could be more casual about the fabric of her clothes, she couldn't be careless about something so close to her body. Furthermore, Su Qingluan had already told Mu Xingzhi about the suggestion to plant cotton on a large scale to produce winter clothes, so she believed he would find a way to expand the use of "cotton-padded clothes."

By that time, cotton planting will have reached a certain scale and price reduction will be just around the corner.

However, Su Qingluan couldn't say this to Yang directly, so she only half-jokingly said, "It's not like our family can't afford to buy cotton anyway!"