beachape wrote:I've been told not to drink tea that has been steeped over night by some Chinese tea shop clerks and a DCM (doctor of chinese medicine). Forgot to ask why though. It is possible that leaves that are steeped over night (hot/warm not cold) could engage in chemical reactions that produce products unfriendly for the body.
Not sure about leaves alone. Just food for thought.
Really thats odd, as I have been taught with aged teas, when you think you have nearly exhausted the tea, one of the best things to do to try and squeeze the rest out of it, is to do one last infusion for many hours, which usually works out as a nice way to wake up in the morning, with a cold, but refreshing, bit of tea. Notice this is usually done in yixing pots, so after about the first hour they are room temperature, and then its nothing more than room temperature brewing over an extended amount of time.
I see no way that this is any less sanitary than anything discussed about cold brewing, or room temperature brewing. Especially since with the lid on the pot this has basically been sealed except for the spout and the little hole on top of the pot.