What does blue spirulina taste like?

Blue spirulina has a remarkably neutral, mild flavor profile. Unlike standard green spirulina, which carries a strong seaweed flavor, salty undertone, and fishy aroma, blue spirulina goes through an extraction process that isolates phycocyanin. This processing removes nearly all the earthy chlorophyll, pungent compounds, and odor-causing elements found in raw whole microalgae.

When consumed by itself dissolved in plain water, you might detect a subtle mineral or slightly metallic note, but it remains extremely understated. When blended into foods or beverages, its flavor is entirely hidden. The natural sweetness of ingredients like bananas, berries, plant milks, or citrus completely covers any trace of the powder. Because of this neutral quality, blue spirulina is widely favored as a natural blue food coloring. It allows you to create visually impressive, vibrant blue dishes without altering your meal’s intended flavor.