i've heard that if you leave green tea out overnight, it'll become poisonious. is that true?
dunno..naver heard before
I'm sure if that were true then every green tea box would have warning labels all over them, but they don't. That is probably an urban myth.
No, it's not true. Although I suppose if you've got a lot of sugar in and you've got a very unsanitary kitchen then you might be looking for trouble.
i have heard that it is yes
but sometime haveto see what type is the tea is some yes some no
If you're talking about tea leaves being steeped in water, then it can become very bitter over the course of several hours.
will there be chemical reactions as a result?
No idea. I wouldn't want to drink any, that's for sure.
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