If you have ever brewed a cup of butterfly pea flower tea and watched the water turn a deep, almost impossibly vivid blue, you have probably had the same thought most people have: what else can I color with this?
Good instinct. That striking blue is not just a novelty for your teacup. It is one of the most useful natural food colorings you can keep in your kitchen, and it comes from a single ingredient with no additives, no artificial dyes, and no complicated processing. Butterfly pea flower tea works as a natural food coloring in baked goods, rice dishes, frostings, beverages, and more. The color-shifting properties that make it famous as a tea make it even more versatile when you start cooking with it.
This guide walks you through how to make a butterfly pea flower concentrate for food coloring, which applications work best, how to get different colors from the same ingredient, and the practical details that keep your results consistent.
What Makes Butterfly Pea Flower Tea Work as Natural Food Coloring
The deep blue color in butterfly pea flower tea comes from anthocyanins, specifically a compound called ternatin. These water-soluble pigments belong to the same family of compounds responsible for the red, purple, and blue tones found in blueberries, red cabbage, and other colorful produce.
What sets butterfly pea flowers apart from other natural blue sources is stability. The blue pigment holds up well under heat, which means it does not wash out or fade when you bake with it, cook rice in it, or stir it into warm frostings. That heat stability is actually one of the reasons the U.S. Food and Drug Administration listed butterfly pea flower extract as an exempt-from-certification color additive in September 2021, covering its commercial use in beverages, candy, ice cream, yogurt, cereals, and more. In May 2025, the FDA expanded that approval to include additional food categories like crackers, snack mixes, and chips.
For home cooking, you are working with the whole dried flowers rather than the commercially processed extract, but the same anthocyanin chemistry applies. Steep them in water, and you get a concentrated natural blue liquid ready to color almost anything in your kitchen. If you want to learn more about the science behind the color, our guide to how butterfly pea tea changes color goes deeper into the pH chemistry.
How to Make a Butterfly Pea Flower Concentrate for Food Coloring
The key to using butterfly pea flower tea as food coloring is brewing a concentrate that is much stronger than a regular cup of tea. A drinking-strength brew is too diluted to color most foods effectively. Here is how to make a concentrate that gives you reliable, vivid results.
Brew a Strong Concentrate
Start with 3 to 4 teaspoons of dried butterfly pea flowers per 8 ounces of water. Bring your water to about 200°F (just below a full boil) and pour it over the flowers. Let the mixture steep for 10 to 15 minutes, pressing the flowers gently with the back of a spoon to release more pigment. Strain out the flowers and let the concentrate cool before using it in your recipes.
This ratio produces a deep indigo liquid that is concentrated enough to tint foods without adding excessive moisture to your recipe. You can adjust the intensity by adding more or fewer flowers, and the same flowers can be steeped a second time for a lighter result, though the second steep will yield a softer shade.
Store for Later Use
Store your concentrate in a sealed glass jar in the refrigerator for up to five days, or freeze it in ice cube trays for longer storage. Each cube gives you a ready-to-use portion of natural blue food coloring whenever you need it. This is an especially handy trick if you bake regularly and want to keep natural food coloring on hand without brewing a fresh batch each time.
Butterfly Pea Flower Tea for Coloring Baked Goods
Baked goods are one of the best applications for butterfly pea flower food coloring because the pigment holds up beautifully through oven temperatures. You can use the concentrate to tint cake batters, bread dough, cookie dough, pancake batter, and muffins a soft blue or lavender shade.
To color a standard cake batter, start with 2 to 3 tablespoons of concentrate and mix it in with your wet ingredients. Because the concentrate is water-based, you may need to reduce another liquid in your recipe by the same amount to maintain the right consistency. If you are working with a honey-sweetened recipe (and if you have not explored baking with honey yet, it adds incredible moisture and flavor depth), keep in mind that honey is slightly acidic. That acidity may shift your blue toward a purple or lavender tone. That color shift is not a flaw. It is the same pH-responsive chemistry that makes butterfly pea flower tea change color when you add lemon, and in baking, it often produces the most beautiful results.
For bread dough, knead the concentrate into the dough during the initial mixing stage. Blue bread has become popular in Asian-inspired baking, and it pairs beautifully with sweet fillings like coconut or vanilla cream. Blueberry muffins, scones, and even pancakes all take on a more dramatic visual appeal when tinted with a tablespoon or two of concentrate.
Butterfly Pea Flower Tea for Coloring Rice
Blue rice is one of the oldest and most traditional uses for butterfly pea flowers. In Malaysia, the flowers are used to color nasi kerabu, a vibrant blue rice dish that is a staple of ceremonial meals. In Thailand, the flowers (known as anchan) have tinted rice and desserts for generations. The process is simple and the results are striking.
Cook your rice as you normally would, but replace a portion of the cooking water with butterfly pea flower concentrate. For vivid blue rice, use about half a cup of strong concentrate per cup of dry rice, then add the remaining water needed to reach your total liquid ratio. The rice absorbs the color as it cooks, producing grains that range from sky blue to deep indigo depending on how concentrated your liquid is.
Blue rice makes an excellent base for grain bowls, sushi, or as a visual centerpiece side dish. It pairs especially well with tropical flavors like coconut milk, lime, and fresh herbs. If you are serving it at a dinner party or a themed event, the color alone starts conversations.
Butterfly Pea Flower Tea for Frosting and Icing
Frosting is where butterfly pea flower concentrate really shines as a decorating tool, because you have full control over the color intensity and you can use the pH color shift to create multiple shades from a single batch.
Start with a basic buttercream recipe and add your concentrate a teaspoon at a time until you reach the shade of blue you want. For deeper color, use less liquid in your base recipe and replace it with concentrate. The result is a naturally colored frosting with no artificial dyes.
Here is where it gets fun. Divide your frosting into separate bowls and add a few drops of fresh lemon juice to one portion. Watch the blue transform into purple or pink depending on how much acid you add. This technique gives you a multi-colored palette from one natural source, which is perfect for decorating cakes, cupcakes, and cookies with a range of naturally derived hues.
If you are using cream cheese frosting, the slight acidity of the cream cheese itself may produce a lavender tone rather than a pure blue. This is completely normal and results in a lovely pastel shade that works especially well for spring celebrations.
How to Get Different Colors from Butterfly Pea Flower Tea
One of the most remarkable things about butterfly pea flower tea as a food coloring is that it is not limited to blue. The anthocyanins in the flowers respond to pH changes, which means you can produce a range of colors by combining the concentrate with acidic or alkaline ingredients.
Blue is your starting point. A neutral-pH concentrate produces a deep, vibrant blue. This is what you get when you use the concentrate by itself in recipes that do not contain strongly acidic ingredients.
Purple results from adding a small amount of acid. A squeeze of lemon juice, a splash of vinegar, or the natural acidity of fruits like berries will shift the blue toward violet. This is the same reaction that makes butterfly pea lemonade turn purple when you pour it over citrus.
Pink and magenta appear with more acid. Continue adding lemon juice or other citrus to push the color further into the pink range. The more acid you add, the brighter the pink becomes.
Teal and green tones emerge when you move to the alkaline side. A pinch of baking soda added to the concentrate shifts the color toward teal or green, though these shades are more subtle and can be harder to control precisely.
This pH responsiveness is what makes butterfly pea flower tea unique among natural food colorings. No other single ingredient gives you blue, purple, pink, and teal from the same source. For anyone decorating desserts, crafting layered drinks, or creating visually striking dishes, this versatility is hard to beat.
Tips for Getting the Best Results with Butterfly Pea Flower Food Coloring
Store Your Dried Flowers Properly
The blue pigment fades with light exposure, so keep your jar sealed and stored in a dark, cool cupboard. Our Blue Butterfly Pea Flower Tea comes in a glass jar designed to preserve the flowers, but once opened, keeping it away from direct sunlight is essential for maintaining pigment strength over time.
Use Filtered Water
Tap water with a high mineral content or chlorine can dull the color. Filtered or spring water produces the brightest blue and gives you the most consistent results from batch to batch.
Add Concentrate to Cool Mixtures When Possible
While the pigment is heat stable, you will get the most vivid initial color by mixing it into ingredients that are not actively hot. For baking, this means adding it to your wet ingredients before combining with dry. For rice, adding the concentrate to the water before it heats up works well.
Test Your Color Before Committing
Dip a white spoon or plate into your batter, frosting, or liquid to see the actual shade before you tint the entire batch. A little concentrate goes a long way, and it is easier to add more than to dilute an overly intense color.
Know the Flavor Profile
Butterfly pea flower tea has a mild, earthy taste similar to a light green tea. At concentrate strength, you may notice a subtle earthiness, but in most recipes (especially those sweetened with raw honey, vanilla, citrus, or chocolate) the flavor blends seamlessly into the background. It will not compete with or overpower other ingredients.
Butterfly Pea Flower Tea vs. Artificial Blue Food Coloring
If you have been reaching for a bottle of synthetic blue food dye, butterfly pea flower tea offers a plant-based alternative worth considering. Synthetic blue dyes are petroleum-derived colorants, while butterfly pea flower tea is a single-ingredient, plant-based colorant with centuries of culinary use across Southeast Asia.
The practical differences are worth noting. Artificial dyes produce extremely concentrated, consistent color with very small amounts. Butterfly pea flower concentrate requires more volume to achieve similar intensity, which means you need to account for the added liquid in recipes. However, the trade-off is a completely natural ingredient list and the bonus of pH-responsive color changes that artificial dyes simply cannot replicate.
For home bakers, parents looking to skip artificial dyes at birthday parties, and anyone who prefers knowing exactly what goes into their food, butterfly pea flower tea makes the switch easy and enjoyable. You are trading a few drops of synthetic dye for a tablespoon or two of a botanical concentrate that also happens to be caffeine-free and mild enough to use in recipes for all ages.
Creative Ideas for Using Butterfly Pea Flower Food Coloring
Once you have a batch of concentrate on hand, the possibilities extend well beyond basic baking. Here are some ideas to spark your creativity.
Color-changing lemonade is always a crowd-pleaser at parties. Pour butterfly pea flower concentrate over ice in a glass, then top with lemonade or sparkling water with lemon. The citric acid creates a beautiful ombre effect as the blue shifts to purple right in the glass.
Blue pasta dough adds a dramatic twist to homemade noodles. Replace the water in your pasta recipe with concentrate for noodles that turn heads at the dinner table. The color holds through boiling and pairs beautifully with cream-based or garlic butter sauces where the blue stands out against a lighter backdrop.
Naturally colored Easter eggs can be made by soaking hard-boiled eggs in warm butterfly pea flower concentrate. The longer you soak, the deeper the blue. Add a splash of vinegar for purple eggs, or layer the soaking times for an ombre effect.
Galaxy-themed desserts become effortless when you swirl blue, purple, and pink (using the pH-shift technique described earlier) into cheesecake batter, mousse, or whipped cream for a marbled cosmic effect.
Blue and purple smoothie bowls get their color from adding a tablespoon of concentrate to your blended base. Top with fresh fruit, granola, and a drizzle of honey for a breakfast that looks as good as it tastes.
Cocktails and mocktails benefit from the visual drama of butterfly pea flower concentrate. Brew a strong batch, cool it, and use it as a mixer. When you add citrus at the table, the color shift happens right in front of your guests. Our artisanal tea collection includes the dried butterfly pea flowers you need to get started.
Each of these applications works with the same simple concentrate recipe outlined earlier in this guide, making butterfly pea flower tea one of the most versatile natural food colorings you can keep in your kitchen.
Butterfly Pea Flower Tea Food Coloring: Quick Reference
Here is a quick summary of ratios and methods for the most common food coloring applications.
Concentrate recipe: 3 to 4 teaspoons dried butterfly pea flowers per 8 ounces of water at 200°F, steeped 10 to 15 minutes.
Baked goods: 2 to 3 tablespoons concentrate per standard cake batter. Reduce other liquids by the same amount.
Rice: Replace half the cooking water with concentrate for vivid blue. Adjust ratio for lighter or deeper shades.
Frosting: Add concentrate 1 teaspoon at a time to buttercream. Add lemon juice for purple/pink variations.
Beverages: Use concentrate directly over ice. Add citrus for color-shifting drinks.
Pasta dough: Replace all water in the recipe with concentrate for the deepest blue.
Storage: Refrigerate concentrate up to 5 days in a sealed glass jar, or freeze in ice cube trays for longer storage.
Ready to start experimenting? Our Blue Butterfly Pea Flower Tea is whole dried flowers sourced from Thailand, packaged in a reusable glass jar with approximately 20 servings per jar. That is enough to make several batches of concentrate for all of the applications in this guide. To learn more about what makes this tea so special, visit our complete guide to what butterfly pea flower tea is and why it has been captivating kitchens around the world.
Butterfly Blue Pea Tea FAQs
Is butterfly pea flower tea safe to use as food coloring?
Yes. Butterfly pea flowers have been used in food and drink across Southeast Asia for centuries. In 2021, the FDA listed butterfly pea flower extract as an exempt-from-certification color additive for commercial food products (21 CFR 73.69), and expanded the approved food categories in 2025. For home cooking, you are simply steeping dried flowers in water, the same way people in Thailand, Malaysia, and Vietnam have done for generations.
How much butterfly pea flower concentrate do I need to color food?
It depends on the application. For baked goods, 2 to 3 tablespoons of strong concentrate (brewed at 3 to 4 teaspoons of flowers per 8 ounces of water) tints a standard cake batter. For rice, replace about half your cooking water with concentrate. For frosting, start with 1 teaspoon and add more until you reach your desired shade. A little goes further than you might expect.
Does butterfly pea flower food coloring change the taste of food?
Butterfly pea flower tea has a very mild, earthy flavor similar to a light green tea. At the concentrate ratios used for food coloring, the taste is subtle and blends into the background of most recipes, especially those with honey, vanilla, citrus, or chocolate. It will not overpower other flavors.
Can I make butterfly pea flower food coloring ahead of time?
Absolutely. Store your concentrate in a sealed glass jar in the refrigerator for up to five days. For longer storage, freeze the concentrate in ice cube trays. Each cube gives you a ready-to-use portion whenever you need it.
Why did my blue food coloring turn purple in my recipe?
The anthocyanins in butterfly pea flowers are pH-sensitive. When they come into contact with acidic ingredients like lemon juice, cream cheese, honey, or vinegar, the blue shifts toward purple or pink. This is completely natural and is the same chemistry that makes butterfly pea tea change color. You can use this property intentionally to create a range of colors from a single ingredient.
What is the difference between butterfly pea flower tea and butterfly pea flower extract?
Butterfly pea flower tea refers to the whole dried flowers steeped in water, which is what you use in home cooking. Butterfly pea flower extract is a commercially processed product that undergoes ultrafiltration and concentration, and is the form that the FDA has specifically approved as a color additive under 21 CFR 73.69. Both derive their color from the same anthocyanin compounds, but the extract is a standardized product used by food manufacturers.
Is butterfly pea flower food coloring better than artificial blue dye?
That depends on your priorities. Artificial blue dyes (like FD&C Blue No. 1) are highly concentrated and consistent, requiring only a few drops. Butterfly pea flower concentrate is plant-based with centuries of culinary history, but requires more volume to achieve similar intensity. The bonus is that butterfly pea flower tea can create multiple colors (blue, purple, pink, teal) through pH changes, which artificial dyes cannot do.
