How to write protein for boiled eggs? Is it written on the raw egg shell or the cooked egg shell with acetic acid?

But you can't see any traces. Some people say that you should write it in raw egg shells with acetic acid before cooking. But what I see in readers is that eggs are boiled first, and then ... written on eggshells? If so, the effect of raw eggs and cooked eggs is the same, and the reaction is acetic acid and eggshell. ...

The premise is boiled eggs! ! ~ ... write on the eggshell with acetic acid. When the acetic acid dries, the eggs are cooked. The words are absorbed by the egg white and printed on the cooked egg white, leaving no trace on the eggshell. ......

The writing principle of acetic acid on eggshell is that acetic acid reacts with calcium carbonate on eggshell to produce calcium acetate; This kind of egg can still be eaten after it is cooked ... it can be eaten ... it is best not to eat it. Acetic acid and protein have dehydration reaction. ...

Ordinary paper can be used, as long as the ink is colorless, and most colorless organic substances have unique infrared spectrum characteristics and ultraviolet spectrum characteristics, and it can be used with sensors with broad or narrow spectrum irradiation and specific receiving spectrum. ...

After the eggs are cooked, put them in cold water immediately. According to the principle of thermal expansion and cold contraction, eggshells and eggs are not so close together, and it is easy to fall off after peeling. ... cool it with cold water ... I watched it on TV. Tap the eggs lightly before cooking. ...

Coat the eggs with vinegar and dry them before cooking ... Boil the egg white ... "Egg white" is only suitable for raw eggs ... It's so romantic ... You don't want to leave any traces on the eggshell ... Peel off the eggs. ...

So when the eggs are taken out of the refrigerator, they will get wet when they see the temperature outside. Writing with chalk won't last long ... writing with chalk on the blackboard will leave handwriting on the blackboard, indicating that there is movement between molecules ... hello! ...

Egg whites will not flow out due to atmospheric pressure. Because there is air in the egg, after a small amount of egg white flows out, you can stick a small hole in each end of the eggshell and shake it ... first break the egg 5 cm, and then put both sides in. ...

After fresh eggs are cooked, the thin skin between egg white and eggshell is easy to peel off, because the density of protein increases and the volume decreases after cooking, leaving a small amount of air between protein and skin. Eggs are difficult to peel, which means they are not fresh enough. ...

I watched it on TV. Before cooking, tap the egg lightly to make it crack, and then peel it easily, provided, of course, that the egg is not broken. . . ... let it stand in cold water for a while, and then peel it. .....