Why butterfly pea tea changes colour with lemon
Lemon changes the acidity of a butterfly pea infusion, shifting its colour from blue towards purple or pink. It is a change in pigment colour, not a sign that the drink has become healthier. Prepare your tea according to your pack before trying the lemon step.
Try it with your cup
- Put the amount shown on your pack into a clean cup or infuser.
- Add hot water and steep according to the pack directions.
- Remove the infuser or strain out the flowers.
- To see the colour change, add lemon juice a little at a time and stir.
- For an iced version, let the strained tea cool, then pour over ice. Add lemon when you are ready to watch the change.
Why does lemon change the colour?
Butterfly pea flowers contain anthocyanins, natural plant pigments. Their colour depends on acidity, or pH. Lemon makes the infusion more acidic, shifting the blue towards purple or pink. The colour change is chemistry, not a sign that the drink has become healthier.
Common questions
Is the blue colour from the flowers?
Butterfly pea flowers naturally contain blue-purple pigments. For a packaged blend, check the ingredient list rather than assuming that everything in the cup is butterfly pea.
Can I drink it without lemon?
Yes. Lemon is optional for the colour-change step. Prepare the tea according to your pack and enjoy it warm or iced.
Why did my cup turn purple rather than pink?
The shade depends on the pH of the drink. Add lemon gradually rather than chasing one exact colour.
How many flowers should I use?
Use the serving directions on your pack. Flower size and blends can differ, so there is no universal flower count in this guide.
Try it with your next cup
Explore True Nirvana Butterfly Pea Tea, check the ingredients and serving directions on your pack, and try the lemon colour-change step.
Colour explanation source: UF/IFAS ENH1309 (EP573). The source is used for pigment chemistry, not health claims.
