The ingredient of Pepsi Coca included carbonic water,white sugar,caramel colour ,phosphoric acid,caffein and food flavor.
百事可乐基本成分有碳酸水(水,二氧化碳),白沙糖,焦糖色,磷酸,咖啡因,食用香料。
英语百科
Caramel color
(重定向自Caramel colour)
Caramel color or caramel coloring is a water-soluble food coloring. It is made by heat treatment of carbohydrates, in general in the presence of acids, alkalis, or salts, in a process called caramelization. It is more fully oxidized than caramel candy, and has an odor of burnt sugar and a somewhat bitter taste. Its color ranges from pale yellow to amber to dark brown.