Packaging first, let's look at the difference between packaging. The cellophane on the outermost layer of authentic Dong 'e Ejiao packaging is flat, without wrinkles, and the folded place is also flat and regular, so it seems that the packaging is more careful. As for the outer packaging of imitations, cellophane will have many folds, and the wrapped box is relatively loose, which doesn't look very regular at the folds. Obviously, there are not so many strict requirements on the packaging.
Authentic color film is straight, the film is complete, there are no oil holes and air holes on the surface, it looks as black as paint, its permeability is more like amber, and it is more moist. However, some fake films are uneven in bending and have oil holes and air holes on them. The surface is dark and looks a little dirty. When you break them with your hands, you will feel tough and not easy to break.
Combustion experiment
Take a piece of film and burn it. Authentic Dong 'e Ejiao is white after burning, and the smoke emitted is also white. Fake products are mostly green, red and black after burning, and black smoke comes out when burning. In addition, the real donkey-hide gelatin is not sticky after burning, but the fake donkey-hide gelatin is sticky. Obviously, the texture is not very good, and it contains a lot of harmful gum.
Own characteristics
Authentic Ejiao will not appear soft even in summer, and it is fragile and odorless, and looks even in thickness. However, most imitations have rough surfaces, and careful observation will reveal impurities and bubbles that are difficult to dissolve. It still smells of leather and rubber after being broken. Such donkey-hide gelatin is not easy to absorb, and there are many impurities when brewing, which is not as clear as genuine products.
Oral examination method
After opening Ejiao, we broke off a small piece and put it in our mouth. Authentic Dong 'e Ejiao melts naturally in the mouth, with a greasy feeling and a slightly sweet and bitter taste. Ordinary imitations are not easy to melt in the mouth, and they also smell of blood. Think about how such Ejiao can be good. It may be made of cowhide, horse skin and other leather, which is harmful to human body. Some time ago, it was reported that eating this kind of donkey-hide gelatin may cause miscarriage, so you must pay attention when buying it.
Matters needing attention
When mashing Ejiao, we can choose not to open the small bag and put it directly on the hard board or other hard objects. It is easy to smash things with a hammer, and then powder will appear when the small package is opened. If we choose to cook Ejiao, remember to use slow fire and keep stirring to prevent it from sticking to the pot. reference data
The content comes from personal experience and network experience for reference only. If you need to solve specific problems (especially in the fields of law and medicine), I suggest you consult professionals in related fields in detail.