As long as it's normal tofu

Whether it is brine or plaster, it is harmless to human body.

Because ordering tofu is a chemical change.

Salt water itself is poisonous.

Because it is a mixture of magnesium chloride, sodium chloride and magnesium sulfate.

But in the process of ordering tofu,

Chlorine replaces calcium ions in soybean milk, and its brine itself is no longer brine.

It is also non-toxic.

Of course, chemical changes have a quantitative problem.

One more party will have a surplus.

Too much salt water will really make tofu toxic because of incomplete reaction.

But tofu turns black when there is more brine.

No fool can eat it.

The white tofu you saw must have been completely reacted by the brine.

As the old saying goes, "Bitter water makes tofu, and everything drops."

Gypsum is calcium sulfate

It is worth mentioning that

Gypsum itself can be used as medicine.

Do you think it is edible?

Similarly, when gypsum is used to coagulate soybean milk, the same chemical changes will occur.

The difference between brine spots and gypsum spots is not the harm to human body.

The difference is the taste.

Use gypsum to make tofu, and more water will be put in the tofu.

Let tofu contain more water.

This tofu tastes tender.

But tofu tastes weak.

It tastes bad

But if there is too much water, just weigh it.

So now some businesses use plasters to make more money.

Ordering tofu is also a kind of learning.

Dosage is critical.

So he said: "There are three difficulties in the world, punting, while the iron is hot, making tofu."

No matter what acupoints are used, the dosage is very small.

Even if you eat it every day, there will be no problem.

At least it is less harmful to human body than junk food such as instant noodles, ham, sausages and many food additives.