Beverages

Natural colors suitable for beverages vary greatly by the type of beverage and packaging. The pH of a beverage is one of the greatest influencers in predicting the performance of natural colors. While colors such as paprika and beta-carotene can withstand a wide pH range, anthocyanins will appear bright red in sports drinks and vitamin enhanced water at a pH around 3.0, but are not stable in near neutral pH beverages and will fade from blue to grey, to colorless. If the pH of the beverage is below 2.0, as seen in many carbonated soft drink concentrates, the natural options currently available will be limited in these applications due to precipitation.

Ingredients such as added flavors, vitamins, and polyphenols can interact with different natural colors. Vitamin C, for example, enhances the stability of natural beta-carotene, but weakens the color stability of anthocyanins.

beverages

Blue, green, and purple hues are more difficult to achieve for ready-to-drink (RTD) beverages because spirulina extract is not currently approved for use in RTD beverage applications in the U.S. per FDA CFR Title 21 and it is not stable to heat or light. However, it is well suited for powdered drink mixes. Because there is such a wide variety of beverage types and available natural colors, it is often necessary to work directly with color experts to create custom blends to achieve the right hue that will function properly within a particular beverage system.