How to Use Blue Spirulina? The Blue Spirulina
The name "blue spirulina" is a bit misleading.
Because we don't have another blue variety of spirulina. The product called blue spirulina is a blue extract rich in phycocyanins, usually isolated from spirulina known as Arthrospira platensis .
So it's not just another shade of green.
Blue extracted from within the green.
This difference is important. While classic spirulina powder has a distinct seaweed and herbal taste and a dark green color, blue spirulina has a completely different primary role in the kitchen:
To add color.
What is Blue Spirulina?
Arthrospira species, which we know as Spirulina, are cyanobacteria that perform photosynthesis. They naturally contain multiple pigments.
While chlorophyll is one of the main sources of green color, phycocyanin is one of the primary pigment-proteins responsible for bright blue color.
Phycocyanin's function isn't simply to give the organism color. It's a pigment-protein complex that helps capture specific wavelengths of light during photosynthesis.
What attracts the attention of the food world is far more visible: it is one of the few natural sources of a powerful blue color.
How is blue spirulina obtained?
In classic spirulina powder production, the entire biomass is used. In blue spirulina, however, the aim is to isolate the portion that is particularly rich in phycocyanins.
During production, spirulina cells are broken down, and phycocyanin is extracted from the cell structure using water-based extraction methods. The resulting extract can undergo filtration and various purification stages; it is then dried and powdered.
The purity of the extract and the concentration of phycocyanins can vary depending on the method used by the manufacturer. Therefore, not all "blue spirulina" products on the market have the same color intensity.
Instead of describing this product as "pure pigment itself," a more accurate description would be:
A blue extract isolated from spirulina, rich in phycocyanins.
Why is it such a bright blue?
Phycocyanin gives water a characteristic and quite vibrant blue color. This makes blue spirulina somewhat unusual among natural color sources.
While nature has abundant sources of red, yellow, orange, and purple pigments, obtaining a clean and distinct blue is much more difficult.
As the amount used increases, the color can progress from a light sky blue to a more intense and saturated blue. But even a small amount goes a surprisingly long way.
What does blue spirulina taste like?
If you've used classic spirulina, you're familiar with its distinctive seaweed and herbal taste.
Blue spirulina is different.
When phycocyanin is broken down, a significant portion of the components responsible for the taste and aroma of spirulina biomass remains behind. Therefore, a high-quality blue spirulina powder usually has a very mild or almost neutral taste.
This feature makes it particularly useful in the kitchen.
You don't have to change the taste of the whole recipe to turn a bowl blue. You don't add a distinct seaweed flavor when coloring a cream.
Here's the beauty of blue spirulina:
It's visible, but in most recipes, it doesn't really enhance the flavor.
What is it used for in the kitchen?
The primary function of blue spirulina is to provide a natural blue color.
It works particularly well in the following applications:
Smoothie
Bowl
Yogurt
Chia pudding
Cream
Icing
Frosting
Cold drinks
Coconut-based desserts
Frozen yogurt and sorbets
The "light-colored" part here is important.
Blue spirulina works on top of colors already present in the recipe. If there are strong yellow, brown, red, or purple pigments in the mixture, the resulting effect will change.
How to Use Blue Spirulina?
To start , ¼–½ teaspoon, approximately 0.5–1 gram, is sufficient for most servings.
If you want a lighter blue shade, you can use less. For a more intense blue, it's better to increase the amount gradually rather than suddenly.
The simplest answer to the question of how to use blue spirulina is to first dissolve a small amount in cold liquid and add the pigment to lighter-colored mixtures last.
The best method:
Add a small amount.
Mix thoroughly.
See the resulting color.
Increase it gradually if necessary.
In this product, the required quantity is often determined by the color you want to achieve, not the taste.
Does using the same quantity in every recipe yield the same color?
No.
The following factors can alter the resulting color:
The starting color of the recipe
Liquid quantity
The density of the mixture
Acidity level
Heat
The pigment concentration of the blue spirulina used.
Half a gram of blue spirulina is quite noticeable in white yogurt, but it might produce a more greenish or turquoise result in yellow mango puree.
Therefore, when working with blue spirulina, it's not just important to ask "how much did I use?", but also "what did I add it to?".
How to mix it with water?
Phycocyanin is a water-soluble pigment-protein. Therefore, blue spirulina can be easily used in water-based applications.
However, instead of adding the powder directly to a large amount of liquid, mixing it with a few spoonfuls of liquid first will give a more controlled result.
Especially in dense recipes like yogurt, cream, and glazes:
Put the powder in a small container.
Add a few drops or a spoonful of cold liquid.
Stir until there are no lumps left.
Add the blue mixture you prepared to the main recipe.
This method ensures both a homogeneous distribution of color and prevents the use of excessive pigment.
The most important issue: Temperature.
One of the most important things to know when working with blue spirulina is this:
Phycocyanin is sensitive to heat.
Because it is a protein-pigment complex, its structure can be disrupted at high temperatures, and the bright blue color may fade.
Color loss can accelerate as temperature increases; the change may become more pronounced, especially at 50–60 °C and above. Light and the acidity level of the environment can also affect the stability of the pigment.
Therefore, using blue spirulina in cold or low-temperature environments is the safest method whenever possible.
Is there absolutely nothing added to the hot recipe?
It can be added; however, timing is important.
If you are preparing a cream, sauce, or other hot mixture, instead of cooking or boiling the blue spirulina for a long time:
Remove the recipe from the heat.
Allow the mixture to cool as much as possible.
Add the blue spirulina last.
"Add it after taking it off the heat" is a good starting point; however, if possible, waiting for the mixture to cool a little longer will help preserve the color better.
Why does acidity change color?
The color of phycocyanin is not only affected by temperature. The acidity of the environment can also alter the pigment's behavior.
In highly acidic recipes, the bright blue color may weaken, shifting to a paler or greenish hue.
What does this mean in this kitchen?
Lemonades, cocktails, and fruit-based mixes that contain plenty of lemon or lime juice may not always produce a pure, bright blue color.
Sometimes a turquoise, greenish, or paler color may appear.
This is not a mistake.
It is the chemistry of pigment.
How to use it in a smoothie?
The purest shades of blue are achieved with light-colored materials.
For a simple start:
Half a frozen banana
200 ml coconut drink or milk
0.5–1 g blue spirulina
a touch of vanilla
Blend all the ingredients together in a blender.
Bananas and light-colored milk allow some of the pigment to show through. Adding strawberries, blackberries, or cocoa can still result in a delicious taste; however, don't expect a bright, clean blue anymore.
How to use it in a bowl?
To begin with:
1 frozen banana
100 g yogurt
0.5–1 g blue spirulina
Blend the ingredients until a thick consistency is achieved.
You can reduce the amount of pigment for a lighter shade. The blue background is particularly noticeable when topped with coconut, granola, banana, or light-colored fruits.
How to use it in yogurt?
Yogurt is one of the easiest ways to use blue spirulina.
Start by adding a very small amount to approximately 150–200 grams of plain yogurt. Even less than ¼ teaspoon might be enough for your first attempt.
Mix thoroughly, check the color, and gradually increase the amount if necessary.
The white background of the yogurt allows the blue pigment to show itself clearly.
How to Use in Cream and Glaze?
Blue spirulina works particularly well in light-colored creams.
It can be used in the following recipes:
Buttercream
Cream cheese frosting
White chocolate-based cream
Powdered sugar glaze
Mascarpone or labneh-based cold creams
Here, temperature becomes important again.
For example, instead of adding blue spirulina to melted white chocolate while it's still very hot, wait for the mixture to cool. Dissolving the pigment in a small amount of cold liquid first also helps it distribute evenly throughout the cream.
Why is Blue Lemonade a Little Risky?
Blue lemonade seems like a great idea at first glance. Visually, it is too.
However, lemon juice is quite acidic, and the color of phycocyanin can be affected by the acidic environment.
Therefore, the result with lemonade or lime-based drinks may not always be a pure bright blue. The drink may lean towards turquoise, green, or a paler shade.
If preserving the blue color is your priority, keeping the acidity low and serving the drink soon after preparation may yield better results.
Are other colors possible?
Yes; that's one of the fun parts of the job.
Blue spirulina can create new shades when mixed with other natural colors:
It turns green when combined with a yellow base.
Purple when combined with pink or red pigments.
Lilac when combined with a very light pink base
Sky blue when used on a white base.
Therefore, blue spirulina can be used not only to "make things blue," but also to create a natural color palette.
What will happen to the "Superfood" part?
Blue spirulina has been the subject of scientific research regarding its various biological effects due to its phycocyanin content.
However, the fact that a compound examined in a laboratory setting possesses certain properties does not automatically mean that a food product exhibits a direct therapeutic or health benefit.
Our approach to blue spirulina is not to turn these researched properties into a health promise.
From a culinary perspective, we have a much more tangible and measurable reason:
A naturally occurring, exceptionally potent blue pigment.
This is interesting enough already.
How to Store Blue Spirulina?
Phycocyanin is sensitive not only to heat but also to prolonged exposure to light and moisture.
Blue spirulina:
Store in a cool, dry place.
Protect from direct sunlight.
Close the packaging tightly after each use.
Use a dry spoon when picking up the product.
Do not leave near heat sources.
Leaving the packaging open after use reduces both moisture and light exposure.
The Most Common Mistakes About Blue Spirulina
The most common mistake is thinking it's the blue version of classic spirulina.
It is not.
Classic spirulina contains the entire biomass. It is dark green and has a distinct, herbal, and mossy taste.
Blue spirulina is a blue extract, rich in phycocyanins, that is separated from spirulina. It has a much milder taste and its primary function in cooking is color.
Therefore, the logic behind their use is different.
You mostly use green spirulina as a food raw material.
You often use blue spirulina by first applying it to your eyes.
Because the question here is usually:
It's not about "what flavor this will add,"
"How blue do I want to make this?"
Briefly
Blue spirulina is not simply a different colored variety of classic spirulina. It is a phycocyanin-rich extract obtained by isolating phycocyanin, a blue pigment-protein that naturally occurs in spirulina.
It has a very mild taste; its main role in the kitchen is to add color.
It can be used in smoothies, bowls, yogurt, cream, glazes, chia pudding, and cold drinks.
For starters, 0.5–1 gram , or about ¼–½ teaspoons, is sufficient for most applications.
It is sensitive to heat and strong acidity.
The most important thing to remember when using blue spirulina is:
Don't cook it. Call in the color after you've finished the job.
Let's go to the kitchen now.
Now that we've learned about blue spirulina, it's time to look at some recipes you can make with it.
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