Maybe the problem is with sheng cha? They are too big and producing too much for good control. Their leaf collectors have been going everywhere and I have no doubt that there is not much consideration for food safety. I am glad that your client is taking the initiative to put a discus through the EU MRL test, coz that would be the price for the puer plus that of the test. Few compressed puer producers are good in quality control and safety management. PM me if you want the names.
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