I did now warm it up a little and the big chains dissolved, but there is still a lot of shit floating around, that I have no idea of how it got in. One thing looked like a hair almost, super small though. Must be some dust particles, even though I drew it from the original vial and straight injected it into the fresh pen cartridge.
I used my own BAC water, made of NaCl + 0.9% BAC. I injected the BAC straight into a 0.9% NaCl 100ml glass vial, bc you can't buy BAC water in Germany.
Picking up a filter now from the pharmacy.