Butterfly Pea Tea (Color-Changing Blue to Purple)
The first time I experienced Butterfly Pea Tea was in Thailand. I have been to Thailand several times and I absolutely love it! The second time I had it was during The Auntie Kitchen Show, when we were diving deeper into Thai culture beyond just food and exploring the small, everyday details that people grow up with.
This was one of those moments that stayed with me.
It is simple. It is natural. But the second you add lemon and watch it transform right in front of you, it becomes something unforgettable.
That is exactly what I love about filming and producing this show. A single ingredient can open the door to a whole story.
What is Butterfly Pea Tea
Butterfly pea tea is a caffeine free herbal tea made from dried butterfly pea flowers, commonly used throughout Thailand and Southeast Asia. The flowers themselves are deep blue, and when steeped in hot water, they release that same intense, vibrant color into the tea.
Not a light tint. A bold, rich blue that almost looks like it cannot be real.
The flavor is very mild and slightly earthy, which makes it incredibly versatile. You can drink it on its own, lightly sweetened, or use it as a base for more creative drinks.
In Thailand, it is often served iced, sometimes paired with citrus, and occasionally used in desserts and rice dishes for natural coloring.
The Moment It Changes Color
If you have never seen butterfly pea tea before, the most exciting part is what happens next.
The moment you add lemon juice, the color shifts from deep blue to a beautiful purple.
And it is not subtle. It happens right in front of you.
This transformation comes from natural compounds in the flower called anthocyanins. These pigments react to changes in acidity. When the tea is neutral, it appears blue. When you add something acidic like lemon, the pH drops and the color changes to purple.
The more lemon you add, the brighter and more vibrant the purple becomes.
It is completely natural, and honestly one of the most visually satisfying things you can make in your kitchen.
Why It Is Becoming So Popular
Butterfly pea tea has been used for generations, but it is now starting to gain attention worldwide.
The reason is obvious the second you see it.
The color is striking. It is bright, bold, and different from anything else. In a world where visual content matters, this drink stands out instantly.
But beyond the aesthetics, there is also a growing interest in natural ingredients and plant based options. This tea fits perfectly into that shift. It is simple, clean, and made from a single ingredient.
It feels both traditional and modern at the same time.
Cooking and Learning on The Auntie Kitchen
What made this experience even more meaningful was learning about it through The Auntie Kitchen.
During the episode, while we were cooking and talking about growing up in Thailand, this tea came up as something familiar and comforting. Not fancy. Not complicated. Just something that exists as part of daily life.
Health Benefits of Butterfly Pea Tea
Beyond how beautiful it is, butterfly pea tea also comes with some really interesting benefits.
It is rich in antioxidants, which help protect the body from oxidative stress and support overall wellness. These antioxidants are often associated with skin health and maintaining a healthy glow.
It is naturally caffeine free, making it a great option if you want something soothing without the stimulation of coffee or traditional tea.
It is also often linked to relaxation. Many people enjoy it as a calming drink, especially in the evening.
There are traditional beliefs that it supports hair and skin health as well, which is why you will sometimes see it used in beauty products or wellness routines.
Whether you are drinking it for the benefits or simply for the experience, it is one of those things that feels good to incorporate into your lifestyle.
How I Like to Drink It
One of my favorite ways to enjoy butterfly pea tea is iced. That deep blue turning into purple over a glass of ice that just feels refreshing and elevated at the same time.
But my personal twist is mixing it with Sprite.
It sounds simple, but it is so good. The citrusy, slightly sweet bubbles pair perfectly with the tea, and the color becomes even more vibrant. It turns into something that feels like a specialty drink you would order at a café.
It is also perfect if you are hosting. You can serve the tea blue and then add the lemon in front of your guests so they can watch it change color. It becomes an experience, not just a drink.
You Can Get Creative With It
This is one of those ingredients that really invites creativity.
Beyond the traditional tea, you can also use butterfly pea powder to make lattes, layered drinks, and even desserts. The powdered version blends easily and gives you that same beautiful color in a completely different format, similar to matcha, although butterfly pea tea has no caffeine.
It opens up so many possibilities, especially if you love creating visually stunning drinks.
Why This Fits The Auntie Kitchen
This is exactly what The Auntie Kitchen is about.
It is about discovering the small things that make a culture feel real. Not just the main dishes, but the drinks, the habits, and the little details that people grow up with.
Butterfly pea tea may seem simple, but it represents something much bigger. It is tradition, beauty, and everyday life all in one.
And the fact that something so simple can feel so magical is what makes it worth sharing.
Watch the Full Episode
If you want to see this drink in context, along with the Thai dishes we made and the conversations we had, you can watch the full episode here:
More Recipes from This Episode
We also made mango sticky rice during this episode, which is one of Thailand’s most iconic desserts.
Now you have everything you need to understand not just how to make butterfly pea tea, but why it is so special.
Butterfly Pea Tea (Color-Changing Blue to Purple)
Equipment
- small pot or kettle
- heat-safe cups or glasses
- strainer
- spoon
Ingredients
- 1-2 tsp dried butterfly pea flowers 4-6 whole dried flowers
- 2 cups hot water
- 1-2 tsp honey or sugar optional
- freshly squeezed lemon juice for color changing
Instructions
- Bring the water to a boil in a small pot or kettle.
- Add the dried butterfly pea flowers to the hot water and let steep for 3–5 minutes. The water will turn a deep, vibrant blue.
- Strain the tea into cups if using loose flowers.
- Add honey or sugar if desired and stir until dissolved.
- Slowly add fresh lemon juice and watch the color change from deep blue to a rich purple.
- Serve warm or let cool and pour over ice for a refreshing iced version.
Notes
- The color-changing effect happens because the tea reacts to acidity from the lemon, shifting from blue to purple.
- The more lemon you add, the more vibrant and lighter the purple becomes.
- This tea is naturally caffeine-free.
- For a dramatic effect, add the lemon juice right before serving.
