Blue Tea (Butterfly Pea, Aprajita): Colour Trick, Honest Claims (Video)

2:21 min

Read the full written guide: Blue Tea (Butterfly Pea, Aprajita): Colour Trick, Honest Claims →

In this video we break down butterfly pea tea, what it is, how to brew it, and why it changes color with lemon. You’ll get a quick, practical guide without any hype.

We also cover safety tips, who should avoid it, and the real evidence behind weight-loss, hair, and skin claims. This is personal-care information, not medical advice.

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Transcript

Blue tea turns purple with lemon, what's the science behind it?

Blue tea turns purple with lemon, what's the science behind it?

Blue Tea Magic

Here's the short, honest answer, and one tip most people miss.

What is Blue Tea

Butterfly pea, also called aprajita, is a climbing bean-family vine native to tropical Asia, now grown on balconies across India and Pakistan. Its deep blue flowers are dried and brewed into a caffeine-free tea that changes hue when you add lemon, and it’s often confused with shankhpushpi in Ayurvedic texts.

Flowers per cup

Five to six flowers per cup.

How to Brew

Heat water to just below boiling, about 90-95 °C, then pour over five to six dried petals, roughly a level teaspoon, in a glass cup. Let it steep for five minutes, strain, and enjoy the subtle, woody flavor. You can sweeten lightly or add ginger or lemongrass for extra zing.

Lemon Color Trick

The blue hue comes from anthocyanin pigments, the same compounds that color jamun and red grapes. When you squeeze lemon, the acidity reshapes the pigments, shifting the color to purple or even pinkish magenta, a quick kitchen science demo. A pinch of baking soda will turn it teal-green, showing the pH effect.

Safety First

If you’re pregnant or nursing, it’s best to avoid blue tea, there isn’t enough safety data. People on blood-pressure or diabetes medication should ask a doctor before drinking daily, and some may feel nausea or loose stools. Stop two weeks before surgery and tell your surgeon.

The one tip

The single useful takeaway is to treat blue tea as a caffeine-free, zero-calorie alternative to sugary sodas or chai, not as a miracle weight-loss or hair-growth solution. It’s pleasant, hydrating, and safe for most when enjoyed in moderation, try it iced with a splash of lemon for a refreshing drink.

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Read the full guide

The full guide is on thecareonline.com. General information only, so check with your doctor for your own case.

Nothing on The Care Online is medical advice. Traditional practices are described as tradition, not as fact. Take a persistent or serious concern to a qualified professional. See how videos and posts are made on our methodology page.