Datang: Signed in for Seven Years and Was Exposed by Empress Changsun

This surprised Li Hong, who actually asked himself this question.

To be precise, the salt in the salt pan or salt mine is poisonous.

The reason why people eat food is because it has been purified.

However, in ancient times, the technical conditions were limited, and only some harmful substances could be removed.

But there are also salt produced in some salt fields, which will contain a harmful substance called potassium cyanide, which cannot be removed, and is also called poisonous salt.

This kind of salt is not edible, and people in ancient times avoided it.

Because it is not edible, although there is a lot of salt in these salt fields.

Everyone can only look at it, and feel it is a pity.

However, this poisonous salt has been processed and purified by very good technical means in later generations, which can perfectly remove the potassium cyanide inside.

Chapter 182 Filtering Poisonous Salt

Coincidentally, this method is also very simple.

It's just that the ancients didn't discover it, even Datang could do it.

So he glanced at everyone, "Actually, there are ways to eat poisonous salt!"

Everyone's face changed after hearing this, they had seen the tragic situation of people who ate poisonous salt.

Thinking about it makes me shudder, Li Hong actually said that poisonous salt can also be eaten.

Wei Zheng spoke first, "General Li, has he seen the horrors of those who ate poisonous salt?"

"I haven't seen it before." Li Hong shook his head, "But it probably won't end well."

"Not only will it not be very good, it will be too miserable."

People who eat poisonous salt will feel abdominal pain at first, but it is very mild.

After a while, I felt that my stomach became colic, and the pain was so painful.

It makes people feel like someone is using a stick to twist their own intestines.

Immediately afterwards, those who ate the poisonous salt would turn their lips purple.

Then his face turned blue, and finally his seven orifices bled to death.

When Wu Zuo dissects his body, he will find that the man's intestines have been pierced.

That scene can no longer be described as horrible, it is simply unbearable to look at.

The rest of the people also lamented, after all, they have seen too many such things.

So everyone is afraid to avoid poisonous salt, knowing that some people just encountered poisonous salt.

The place where it touched the poisonous salt would fester, and finally die from the seriousness of the injury.

After hearing what Wei Zheng said, Li Hong was also surprised.

I didn't expect the harm of poisonous salt to be so great. The salt eaten by later generations can only be said to be purified too well.

It's just like any other salt.

The others nodded after hearing this, thinking that the poisonous salt was inedible.

Li Hong smiled, "Everyone listen to what I said, I mean there is a way to eat it, not that you can eat poisonous salt."

It was only then that everyone remembered that he seemed to have really said that.

So Li Shimin asked him to talk about how to eat poisonous salt.

"The salt usually mined from salt fields, salt mines, and salt wells is toxic, so we will purify these salts,

Take out the toxic substances, and the remaining salt can be eaten, so we can also purify the poisonous salt. "

"General Li." Du Ruhui interrupted him, "You may not be clear, we can't purify poisonous salt, although we use the same purification method as other salts,

But poisonous salt is still poisonous, so this method may not work. "

Everyone thought he would have some good solution, but it turned out that he was talking about purification.

For a while, everyone was a little disappointed. It seems that Datang will still be short of salt in the future.

Li Hong sighed, "Everyone, listen to me. I will propose a purification method. Naturally, I understand that Datang's technology is flawed, so I found a new method to replace it."

"A new method?"

Everyone was startled, Li Shimin hurriedly asked, "What new method?"

"As far as I know, the salt in the poisonous salt contains kaempferol. I believe everyone knows what kaempferen is, but this kind of thing can be filtered with the water used to make tofu.

Because tofu contains gypsum and other ingredients, it can effectively filter these kaempferol potassium. "

"Oh?" Li Shimin looked at him in surprise, "Is it true?"

"Of course it is true. If you don't believe me, we can try it."

"Then try it!"

Li Shimin asked for a few catties of poisonous salt and some tofu water.