PAPoots
GLP-1 Enthusiast
So far it has only been a problem with my last Tesa batch and my recent NAD+ batch. I try to go around the perimeter of the cap and separate it from the metal cap, but I still have an issue with about every other cap not breaking from the lid and causing it to tear a bit down the side. As soon as I notice it happening, I have to flex the cap back and forth to break cleanly. I'm hoping the couple millimeters of tearing down the side hasn't compromised the seal. I know it did on one vial because the runner plug actually popped up. That was a sad day. I mash the metal ring down when it happens and I'm hoping the seal is good. I've never had this issue with hundreds of other vials. Maybe they changed suppliers.