How does this blue flower tea change color?

How does this blue flower tea change color? (video)
Credit: The American Chemical Society

Maybe you've seen a beautiful, color-changing tea on social media. Chances are, it's butterfly pea flower tea.

This week, we're investigating what allows it to shift from one vibrant color to the next, and Sam and George play around to see how many different colors they can get:


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Citation: How does this blue flower tea change color? (2020, September 28) retrieved 28 October 2020 from https://phys.org/news/2020-09-blue-tea.html
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