If we don't call her, people will say we've excluded her.
Then they'll say again that the position of women's director is really useless.
"During the heating and concentration process, a layer of foam appears on the surface of the liquid; this foam must be continuously removed."
These foamy substances are proteins, and because they float on the surface of the sugar solution, they can hinder water evaporation, easily causing the liquid to boil over.
Gu Yunyang pointed out some key points to Gu Changbai, and Gu Changbai grew a lot in the process.
It can be said that if you always learn according to the knowledge in the book, your growth will be slower.
However, if there is actual operation involved, the speed will be faster.
This time, Gu Changbai has basically mastered the steps.
But just now, Gu Yunyang quietly asked Gu Changbai, whose mind was still a little blank: "If I do it by myself next time, I will still forget some things."
Gu Yunyang knew that he would have to keep a closer eye on things next time.
You also need to control the heat and temperature at each stage of the process; you must find the right balance.
It will take Gu Changbai a long time to figure it out.
Finally, when Fan Xiangbei arrived, the maltose had already been made.
Looking at the amber-colored maltose, although the kerosene lamp wasn't very bright, the gazes of the people around seemed to illuminate the entire warehouse.
"good."
Fan Xiangbei tapped the ground repeatedly with his cane, expressing his excitement.
What is the sugar yield?
In fact, sweet potatoes have a high sugar content, which can reach about 10%.
However, it depends on the operation, the environment, and the wear and tear, etc.
This number will decrease slightly.
Gu Yunyang didn't speak, even though he had roughly estimated the number.
But this job is going to be given to Gu Changbai in the future, so let Gu Changbai handle this matter.
Gu Changbai was taken aback, then realized why Gu Yunyang had asked him to weigh the maltose first.
At this moment, Gu Changbai was kicked by Gu Yunyang from below. He came back to his senses and said, "This time, we used thirty catties of sweet potatoes and produced a little over two and a half catties of sugar."
"so much?"
The price of 30 jin of sweet potatoes here is currently one cent per jin.
If you go to the city center, it might cost two to three cents per pound.
A pound of maltose costs at least 80 cents.
When it's expensive, it might cost less than a dollar.
They might even need sugar coupons.
That's a very high profit margin.
Gu Yunyang coughed and summarized, "That's right, sweet potatoes have a relatively high sugar content. Theoretically, one pound of sweet potatoes can yield one ounce of maltose. However, there are losses during the production process. For example, during the initial washing, one ounce of the sweet potato skin may not seem like much, but with a large quantity, the skin also accounts for a significant portion of the weight."
Then, there are losses in the subsequent processes of starch production and saccharification.
It might account for less than 10% to 20%.
So this needs to be taken into account.
Also, the price the supply and marketing cooperative sells maltose at is not the price we sell it to the supply and marketing cooperative at; this needs to be clear.
Gu Yunyang's words cooled the enthusiasm in everyone's hearts a little.
But I was still very happy.
Even if they reduce the profit by half, they will still make a considerable profit.
Sweet potatoes are worthless.
Moreover, sweet potatoes are not picky about the soil; you can just throw some sweet potato tubers on the mountain and they will grow.
Moreover, sweet potato vines are easy to root during their growth, so cutting some seedlings and planting them elsewhere can also increase yield.
"It's alright, some wear and tear is normal. In any case, we have finally found a hope to escape poverty."
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