a friend of a friend recently ordered some mhrb. when it arrived and was inspected, instead of being pink-purple inner bark it was beige outer bark, with a lot of bark, bark on it. as in it looked like it was broken off an oak tree of something he says. the vendor was contacted and wrote back saying that it was mhrb premium bark, but the premium bark has the acutal outter bark still on it. so my friends friend wants to know if anyone has ever heard of that because he hadnt. mhrb premium wasnt even listed for sale on the vendors website either. and he was under the assumption that the purple-pink inner bark was actually whats supposed to be the premium part of it all anyways.
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just go for it perhaps do small amounts to test (say 300 grams) and do let us know how your yields go if you don't mind, put a pic up after you've powdered it and let us know how you did it
all the best!