1, boiling time: the longer the boiling time of the jelly, the more easily the collagen and the protein in the pig skin dissolve, making the jelly more viscous, while the color will be more white.

2, the quality of pork rinds: the better the quality of pork rinds, the higher the collagen content, the boiled jelly will also be more white.

3, the use of seasoning: in boiling jelly, if you add the seasoning is mainly salt, then the color of jelly will be white. If you add the seasoning is mainly soy sauce or soy sauce, then the color of jelly will be dark.