Butterfly pea tea
Another variation on
the cabbage-water-indicator we've tried out lately - butterfly pea tea.
You can buy it from Amazon, but not from any specialist
tea shops. When I phoned them up and asked them about it, the Oxford ones were
curious, and had never heard of it!
It's almost flavourless, so works well in cocktails, and
a few leaves make a vivid, bright blue liquid. Squeeze some lemon in, and it
turns vibrantly pink (less effective with dry ice - just turns purple. Needs
more push).
You can add gin to it safely without changing the colour,
although shockingly most people don't want to drink a cocktail that tastes
mostly of gin. Elderflower cordial is a good add that doesn't affect colour.
Pictures:
*Dr Rowena Fletcher-Wood*
Science Communicator
*sciencegecko.co.uk* <http://sciencegecko.co.uk>
@RowenaFW
07708824013
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