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Make Your Own Colour Changing Butterfly Pea Infused Gin

Make your own colour changing gin

If you’ve been a gin enthusiast for a while, you will most certainly have come across the delightful invention of colour changing gins.

They’re splendid to look at especially when transitioning, but have you ever wondered what’s the science behind them? More so, what is contained in the gin that makes it change colour like that?

So the idea behind butterfly pea / blue pea flower tea is that it generates a chemical reaction when found in acidic solutions such as alcohol which is naturally acidic. What is the chemical reaction you ask? The solution turns purple.

Basically if you were to infuse butterfly pea into spirits such as gin or vodka, you’d get a purple-ish alcohol. Add a bit of lime or lemon juice and you’ll get pink gin (you’re practically making the solution more acidic).

pink gin
B-lure Flower Extract / Amazon

But enough with the science, time to learn how to make your own colour changing gin.


  • 90 ml lime juice
  • 30 ml ginger syrup
  • crushed ice
  • premium tonic water
  • 80 ml butterfly infused gin


  1. Fill a Moscow mule glass or highball glass with the crushed ice
  2. Pour the ginger syrup and lime juice over the ice
  3. Pour the butterfly pea infused gin and top with tonic water
  4. This drink will glow under black light – the effect is more dramatic when you add pieces of tonic ice in the drink

You can get B-lure, the natural colour changing flower extract on Amazon for £10.99 

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