His expression immediately became nervous, and Lianlian promised to wear a mask and gloves to do his job.
Chai Shao agreed with Li Xuanba’s reminder: “That’s right, since it’s something that nobles need to use to touch the body, it’s better to pay more attention to it. Sanlang, how do these things turn into soap?”
Li Xuanba said: “I’m optimistic.”
There are two ways to use earth alkali to make soap. One is to directly react with oil. The alkalinity of earth alkali is not strong enough. The soap produced in this way is semi-coagulated and can be used as a shower liquid shampoo.
To make solid soap, you must react with earth alkali and slurry lime, and then filter it to form caustic potassium. Caustic potassium is a strong alkali, and the saponification reaction with oils is stronger.
For efficiency, Li Xuanba made hot soap, that is, directly heated to accelerate the saponification reaction, rather than cold soap that was allowed to stand after stirring.
Cold soap can indeed retain more skin care ingredients, but in ancient times, cold soap not only reacts slowly, but also has a low yield rate. Hot soap is enough.
After Li Xuanba demonstrated it, he directly used the semi-finished soap for the demonstration.
The soap is added with ground spices, which will smell fragrant after solidification. After disassembling the abrasive tools, the petal-shaped soap is small and cute, and it is impossible to tell that it is a “bath bean” made of cheap materials such as soybean oil.
Chai Shao was a little disbelief: “Can this really be better than bath beans?”
Li Zhao rolled up his sleeves: “Let me try it!”
Chai Shao quickly stopped him: “Or I come, my skin is rougher!”
Li Shimin snorted coldly: “Hmph! Why, don’t you believe Ah Xuan? I will do it!”
Chai Shao immediately said: “Believe it, of course I believe it, so I tried it myself!”
Li Xuanba grabbed Li Shimin’s sleeve: “Let my son-in-law try it. If he doesn’t try it myself, he won’t feel at ease. Come and make a basin of warm water.”
The servant called warm water, and Li Xuanba asked someone to bring a pen and ink and drew a stroke on the back of Chai Shao’s hand.
Chai Shao said, “The bath beans can’t wash away the ink traces.”
Li Shimin complained, “Brother Chai, why are you talking nonsense?”
Chai Shao said quickly, “Okay, don’t talk nonsense.”
He wet his hands first, and then wiped his hands with soap according to the habit of using bath beans.
Then, he didn’t notice, and the soap slid into the basin and splashed water.
Chai Shao: “…”
Li Zhao held his forehead: “What are you doing?”
Chai Shao said awkwardly: “I didn’t expect it to be so smooth after dipping it in water.”
Chai Shao carefully grabbed the soap: “The surface has become soft.”
He rubbed his hands again, and when the belt was born on his handsWhen I was wearing the light yellow liquid with tiny bubbles, I finally realized the wonderful use of soap.
Chai Shao put the soap on the side stand and rubbed his hands hard.
The liquid on his hand had not been washed away, and he had already seen the ink marks on the back of his hand.
Chai Shao put his hands in warm water and washed them. After taking them out, he looked at his hands: “It seems to be cleaner than bath beans, and there is no powder falling off.”
Li Xuanba rolled his eyes at Chai Shao’s nonsense.
Bath beans are bean powder balls, and of course they will lose powder. Look at where does the powder come from my soap?
Chai Shao wiped his hands dry and looked at his hands again.
He rubbed his fingers, never feeling that their fingers were so refreshing.
He sniffed his hands again, and the smell of the spice was also more prominent than using bath beans.