If that was the case and it was dosed properly would it be 200 of mast and the rest tren? I know absolutely nothing about brewing or filling but that seems like a lot of tren just from some filter doesn’t it? Dose is off but within 10 percent. When homebrewing vs. Sourcing came about i was using methods not meant for large scale. Since then I am. 11mg could be a drop or 2 of tren. 23 drops per ml. 200mg per ml of tren e. Thats 8.7mg per droplet. Doesn't take much to contaminate a sample. Again, pipettes would be my best guess. Could have been poor filter purge. (Small batches as a home brewer).
@eje1990