However, potato flour is not made every day, only when the potatoes are harvested, and at other times small workshops start to produce soybean oil.

Soybeans are available in almost every household, and there are quite a few of them, but every household only knows how to use soybeans for stir-frying, or pork and pig's trotters, but they don't know that soybeans can also be used to extract oil.

So after everyone knew that Zhang Tiezhu's small workshop was now harvesting soybeans again, every household began to pick up soybeans to sell again.

家家户户兴奋不已，这张铁柱还真是好呢，不仅收土豆，又开始收黄豆，种的东西能卖钱，大家都开心不已，对张铁柱家是感恩戴德。

What made everyone happiest was that Zhang Tiezhu's family began to sell corn seeds, and each family could spend ten cents to buy one tael (one tael here refers to the weight, equivalent to fifty grams) of corn seeds.

Everyone never thought that Zhang Tiezhu's corn seeds were actually sold, and they thought that Zhang Tiezhu's family would continue to grow them by themselves.

Everyone is even more grateful to Dade for the kindness of Zhang Tiezhu's family.

Zhang Tiezhu said with a smile on his face: "This corn is also an extremely delicious food, since it can be eaten, let's plant it together." ”

Li Hongxiang stood aside and smiled happily, she knew that his husband was kind-hearted, and he couldn't see everyone hungry, anyway, everyone could plant it together, and the seeds didn't sell much, one or two seeds per family, it is estimated that they planted enough to eat themselves, as for how to keep the corn planted, Zhang Tiezhu also told everyone.

Zhang Tiezhu is not afraid that other people's families will grow corn to sell, because he has the imperial merchant Xu Gongzi, and the corn can be sold directly to Xu Gongzi, or the corn can be squeezed into corn oil.

His family Bao'er said that many plants and vegetables can be used to extract oil, such as soybeans, peanuts, and corn, which can be used to extract oil.

As for the sesame oil sold outside, the price is a bit high, he has calculated, if soybeans are used to squeeze oil, the cost will be lower, and it will be profitable to sell 12 cents a pound, which is much cheaper than sesame oil.

Anyway, no matter what, my family has a business to make a living, and I'm not afraid that I won't be able to survive.

Su Jinse also agrees with this, at the beginning, she never thought of breaking everything in her hands, and she also thought that what could be planted, everyone would plant it together.

However, these actions of Zhang Tiezhu's family, in the eyes of some people, have become fool-like behaviors, their own family grows corn alone to make more money, so they have to share it with everyone to plant together, if it is replaced by them, they will not be so kind to teach everyone to plant corn.

Sell your own seeds, sell them at a high price, and it is only a matter of time before you get rich.

Zhang Tiezhu doesn't care what others say, just live his own life.

Since the family sold potatoes, yams and corn, they have saved almost more than 300 taels of silver, and they spent almost 100 taels of silver on building a workshop to buy land and build tools, but now they still have 200 taels on hand, which is enough for the family to spend.

In addition to keeping some of the soybean oil produced by himself, the rest was still sold to Xu Lang.

Xu Lang is very happy about this, Ah Xuan really found him a good business, all kinds of tribute vegetables can be grown here in Zhang Tiezhu, and there is no need to spend a lot of money to buy them outside the fan, you will have them in your own country.

Now soybean oil has been produced, the key is that the price of soybean oil is much cheaper than sesame oil, he bought it in bulk, Zhang Tiezhu gave him ten yuan a pound, and two yuan cheaper, he is really a simple farmer.