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My smoothie is acting as an indicator?

  • 22-02-2020 11:59am
    #1
    grizzly_beer
    Registered Users, Registered Users 2 Posts: 110 ✭✭


    I'm curious about something I've noticed...


    I make a pink smoothie (raspberries, greek yogurt, bananna, orange) in a clear plastic container.


    Drink it.


    Few mins later rinse it out with tapwater.


    The water turns milky blue /green.


    I've tried a adding the water a little bit at a time, the water is initially pink (as one would expect) and at a certain point it changes to blue/green.


    Is there some kind of chemical reaction happening?
    Is my smoothie functioning as an indicator and showing the ph?


    Thanks!
    Tagged:


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