Just been browsing this forum for the first time and wow! There's so much tea knowledge in this place I'm spoiled for choice. Unfortunately I'm based in London and I can't get to visit the sites and places recommended. However there is a new forum, kinda like this for British tea drinkers, so if you're in the same boat as me then check it out.
The tea stuff is pretty universal, but the events and places have an urban London style. Check it out…http://www.vf11.com/blackpearlteas/
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