Believe me if i smelled or tasted any plastic i would not do it, don't they put the bho products on parchment?
thats what i was saying, taste indicates purity, but its not proof.
putting bho on parchment is not the same as putting very hot (butane laden) extract on parchment, and apparently butane reacts with the coatings on most parchment, but of course the finished product is fine touching it. The worry with hot extract with butane in it is because of the butane, so the same fears dont apply with heat press technique, as there is no butane.