| | | Coloring naturally, different color series corresponds to different flavor. |
| Raw material → cleaning → heating → blending →concentrating →filling → sterilizing → cooling → finished product | Add at latter concentration stage with a proportion of 1-2‰ | Enhance tomato sauce color obviously, while retaining good light and heat resistance |
| Soaking the broad-bean → steaming & boiling → cooling → fermenting → ingredients measuring → sterilizing → packing → finished product | Add while measuring ingredients, with a proportion of 1-3‰ | Dedicated product, better coloring result then regular ones |
| Brewing → ingredients measuring → sterilizing → filling → finished product | Add while measuring ingredients, with a proportion of 0.1-0.3% | No influence on flavor, stable under lower pH value. |