The main raw material in Ejiao cake is Ejiao, which is made from donkey skin after depilation and is rich in gum. Good quality donkey-hide gelatin will be wiredrawn during boiling, because it is rich in collagen, while poor quality donkey-hide gelatin has less collagen, so it may not be wiredrawn during boiling.

But now many fakes can also be drawn, not all Ejiao can be drawn, which is also related to the production process and cooking time, so judging the quality of Ejiao can not be judged from one aspect.

What is the reason why Ejiao cake is not painted? 1. The quality problem of Ejiao is that the main component of Ejiao is collagen, and the general collagen is difficult to be decomposed at high temperature, so it will only soften, so there will be a phenomenon of drawing. Generally, poor quality Ejiao has less collagen content, so it is difficult to draw.

2. There is not enough boiling time. Colla Corii Asini is not boiled for enough time, so it may not be drawn, because collagen is not fully softened, so it is difficult to be drawn. However, if too much water is put and collagen is diluted, there will be no drawing.

Can Ejiao be cooked without rock sugar? Yes

The main function of sugar is seasoning, and there is no other function. If you don't like it too sweet, you can keep it. Generally, there are two uses for putting rock sugar. First, rock sugar has the function of moistening the lungs. Second: Because Ejiao needs yellow wine as a drug guide, it has a strong internal heat. Adding rock sugar can neutralize the anger of yellow rice wine, so put it according to your own preferences.

4. Methods and materials for decocting Ejiao regularly: Ejiao, black sesame, walnut kernel, rock sugar and yellow wine.

Exercise:

1. Dry-fry black sesame seeds and keep stirring until they become fragrant.

2. Break the walnut kernel into small pieces and remove some shells inside.

3. Crush the donkey-hide gelatin blocks with a mill and soak them in yellow wine for 1-2 days until the donkey-hide gelatin is dissolved.

4. Prepare a stainless steel tray, spread a layer of plastic wrap on it, brush a layer of sesame oil on the plastic wrap, stir the melted Geely powder and rock sugar evenly, and cook over high fire.

5. When the donkey-hide gelatin is very sticky, put the prepared black sesame walnut kernel into a stirred pot, pour it into a tray, smooth and cool it, and then cut into pieces.