Natural Blue Pigments for Food: Gardenia Blue vs Spirulina Extract vs Butterfly Pea Flower
Blue is the hardest colour to source naturally — and the three commercial options are not interchangeable. We compare gardenia blue, spirulina extract and butterfly pea on hue, stability and US labelling, so buyers can match the right blue to the right application.
Gardenia Blue Is Now FDA-Listed: What US Food Manufacturers Need to Know
On 29 August 2025 the FDA order adding gardenia (genipin) blue to the colour additives exempt from certification took effect. Here is what the listing covers, which food categories are permitted, and what US buyers should confirm before switching to gardenia blue.
Does Gardenia Blue Survive Baking Heat? Oven Test Results
Gardenia Blue in Ice Cream: What Changes in Frozen Desserts
How to Color Gummies and Hard Candy Blue — Naturally
Keeping Gardenia Blue Stable in Beverages: pH, UHT, Clarity
Gardenia Blue Applications by Category — Where It Works
How Stable Is Gardenia Blue? pH, Heat and Light, Tested
Natural Pigments: The Color Revolution from Nature’s Gift to Technological Innovation
