So just a few seconds ago I washed my empty 120ml bottle of vape juice with tap water. I dried with a hot air dryer and I poured 60ML Of Vg and the rest I put PG FLAVOR AND NIC. However the actual top of the bottle still had a little residue from when I ran the tap water through it and I closed it and shook it. Just wondering if it's safe to vape if it was only a little bit of tap water?