"My husband, do you know why you save money?" An Jing suddenly changed her tone and asked Xiao Changyi.

Xiao Changyi shook his head. Saltpeter is not cheap either. If water turns into ice, he probably has to use a lot of saltpeter every time.

After a while of joy, I said, "Because saltpeter can be reused, we don't have to spend money to buy a lot of saltpeter."

"Reuse?" Xiao Changyi's cold eyes lit up.

"Yeah!" An Jing focused heavily. "Although saltpeter dissolved into water and turned water into ice, the ice or water containing saltpeter can be obtained again after drying it. Then saltpeter is put into water to make ice... Isn't it a reuse?" As he said that, An Jing raised her chin arrogantly.

Xiao Changyi curled his lips slightly: "Why do I want me to praise you?"

An Jing immediately smiled and said, "Don't praise me, just kiss me."

Xiao Changyi's mouth raised a little more, and he didn't say anything, leaned towards An Jing directly. Although he was kissing, the two of them kissed for a long time before they separated.

Because there is a lot of ice in the room and it is not hot at all, I slept quietly this night and it was particularly comfortable.

On the second day, Xiao Changyi asked Meng Zhuqing to buy saltpeter.

As soon as Meng Zhuqing bought saltpeter, Xiao Changyi asked Meng Zhuqing to make ice according to the quiet steps.

At the beginning, Meng Zhuqing didn't believe that saltpeter could make ice, but he always did whatever his master asked him to do, so he followed the steps very obediently.

It was not until the water in the basin began to freeze that Meng Zhuqing completely believed it, and at the same time, he admired their master's vision even more. Their wife was like their master, and she was a completely amazing genius!

After all the water in the basin was frozen, An Jing said: "The ice in the small basin is edible. You can chop it up and it will be delicious to solve the problem. The weather is so hot."

"Yes." Meng Zhuqing respectfully used tools to chisel ice.

When Meng Zhuqing was chiseling ice, it was already Shen Shi. Doctor Jiang happened to take the vein for An Jing to see if the fetus was stable.

Imperial Doctor Jiang also came once today. He knew that An Jing and the others were making ice, but he was just extremely surprised and did not ask much.

As an imperial physician, it is better to speak less. What's more, some things are not something that he, a small imperial physician, can ask.

Seeing Meng Zhuqing chiseling ice, even though Doctor Jiang knew that An Jing and the others were making ice, he was still surprised again when he actually made it.

When An Jing saw Doctor Jiang coming, she smiled and said, "Doctor Jiang, you are here just right. The ice is ready, you can also eat some coolness."

I didn't want others to know their identities, so Imperial Doctor Jiang always came, so An Jing and Xiao Changyi changed their words early, not asking Doctor Jiang to be Doctor Jiang, but asking Doctor Jiang to be Doctor Jiang.

"Thank you, Princess." Doctor Jiang did not refuse and thanked him respectfully. The weather was really hot. It was so hot that he was on the way to the carriage. It was thanks to him that he had drunk the heat relief soup.

Xiao Changyi didn't see Doctor Jiang from beginning to end. He just scooped some broken ice out of the crushed ice from Meng Zhuqing, intending to ice the sour plum soup for his wife to drink.

His wife is pregnant. Even if it is hot now, he dare not give her to her wife what is too cold. Therefore, it is said to be iced sour plum soup, but he only plans to give her a little ice of sour plum soup to his wife for drink.
Chapter completed!