"Okay, thank you, old man!" Song Fubao stood at the door, smiling sweetly, her eyes followed the old doctor's movements, and her nervous mood was relieved until she saw the old doctor scoop a spoonful of white powder out of the medicine box drawer.

Just by looking at it, she knew it was plaster powder!

I didn't expect it to be so finely polished, after all, there is nothing in this era, and it is really too different to be able to do it so finely.

"Little girl, take a look?" The old doctor handed the spoon to the two of them, and instructed in a serious tone, "What are you buying gypsum for, if you want to cure the disease, you still have to take my pulse and then grab the medicine, but you can't eat it yourself!" ”

Song Fubao immediately stepped forward and pinched it with his fingers, this touch is confirmed.

That's great!

Finally, a link in making gypsum powder was saved, and the task was one step closer.

"Grandpa, how can this be sold? Don't worry, we won't eat casually! Song Fubao pinched the little bit left on his fingers and was very reluctant.

The eyes are glued to the drawer where the plaster cast was kept.

Grandma Song had already been in her eyes for a long time, and at this time she finally got the opportunity to speak by herself, she quickly took out five copper plates, "Old Liutou, get us some, Fubao, how much do we want?" You just say that Lao Liu Tou is the best doctor in the town, and he is a very good person."

"Let's buy half a tael first, that's enough!" Song Fubao recalled that one pound of gypsum tofu only needs ten grams of gypsum powder and three pounds of water.

To make a finished product, if it is made with brine, one pound of soybeans can produce about three catties, while gypsum can produce about three and a half catties, and if it is lactone tofu, it can produce four catties of tofu.

If it is made into dried tofu, it is about four catties of tofu and one catty of dried tofu!

Of course, this is the amount of aged soybeans, if it is new soybeans, one pound of soybeans can produce five catties of water tofu.

Half a tael of gypsum powder is 50 grams of gypsum powder, which is enough for five catties of soybeans, which is completely enough to test the water. The main thing is that if you buy too much, the old doctor must be suspicious.

The explanations are all pale, and when the tofu is made, it will be brought to the old gentleman to see, not only will the gypsum be easy to buy in the future, but it will also be regarded as a recognized endorsement for the new product.

After all, Grandma Song also said just now that he is the best doctor in town.

Doctor Liu glanced at the two people with innocent faces, yes, these two goods look stupid, they don't look like they will hurt people, besides, how can this gypsum powder hurt people?

I have long heard that the Song family finally got a girl after giving birth to eight grandchildren, and she looks good, but I didn't expect it to be just not smart, and what did I say about the blessed stars from the sky, and sure enough, the rumors can't be believed.

So he happily grabbed some and put them in a paper bag to wrap them, and then handed them to Grandma Song, and took out one of the five copper coins, "Just take so much, and take the rest back." ”

Song Fuxing: Why did this old man look at her with those eyes, what do you mean?

"Okay, okay, old Liu, our old Song family will remember your good, let's go, Fubao, go back with grandma!" Grandma Song was uninhibited and learned from the man to give up, and then pulled Song Fubao to leave.

Song Fubao hurriedly followed, and waved to Dr. Liu to say goodbye.

Dr. Liu: ???

Where did this kid learn something strange, why haven't he seen it, he seems to understand what it means, strange, so strange!

The two hurried slowly, and went to the cloth village to pick up a piece of cloth for making mosquito nets, about one square meter, folded it and put it on their chests, and then went to ride the ox cart.

Because the gypsum powder was put into the sleeve pocket of the clothes, they just watched that the two of them didn't buy anything, and the two women were scolded before, and they didn't talk to Song Fubao and Grandma Song all the way.

It was calm to the west of the village, the ox cart stopped, and the two of them snorted and chirped in a weird way, and hurriedly ran away with the basket on their backs.

Back at home, Grandma Song directly isolated the eight male babies and others from the opportunity to contact Song Fubao, and the grandparents took out two catties of soybeans from the locked cabinet in Grandma Song's house, and then went outside the house to fetch a basin of water and poured all the soybeans into it to soak.

Before beating tofu, soybeans need to be soaked overnight, soaked until they swell, if they are bad, they will float up after soaking, and they will be cleaned early tomorrow morning.

Originally, it was necessary to screen the soybeans first, but Song Fubao saw that Grandma Song took out the best soybeans in the family, which were full and huge, and there was basically no need to choose, so he skipped this step.

"Fubao, after soaking, grandma will put it under my bed, what's next, what will I do?" Grandma Song's eyes were wide open, and she couldn't wait to make a pot of tofu immediately.

"The next step is to wait and start tomorrow, but we need to wash two large basins and a pot, and the cloth we sold should also be washed and reused, preferably boiled in boiling water."

Song Fubao hurriedly arranged some preparations, and Grandma Song felt a lot more settled in her heart, so she quickly got up, "Okay, okay, Grandma will prepare immediately, this pot is okay, there is no big pot, I have to borrow a ......"