Chinese pork is red because of the marinade that is used to marinate the Chinese pork in.
The marinade that Chinese pork is marinated in contains ingredients such as hoisin sauce, dark soy sauce, red fermented bean curd and added red food coloring.
These ingredients in the marinade give the Chinese pork it's distinctive deep red color and is considered a visual appeal more than anything else.
The red fermented bean cured is a key ingredient in Chinese pork marinade and provides the natural red color to the marinade.
The dark soy sauce, hoisin sauce and sometimes a small amount of red food coloring also contribute to the red color.
The red Chinese Pork is often used in a Chinese dish called Char Siu which is a Chinese BBQ pork.
An authentic char siu recipe is made with fermented red bean curds (Nam yue).
The red bean curds don't have a lot of flavor, so it's easy to prepare this recipe without it.
Char siu pork is marinated and roasted strips of pork shoulder, pork belly or pork tenderloin.
It gets its distinctive red color and unique flavor from an interesting marinade.