I mix my own 1.6% nic in 250ml batches.
I put blue tape around the nic concentrate caps, for safety.
I use 100mg/ml nic for mixing.
I always have a "spill kit" ready for clean-ups.
The blue taped nic goes in the freezer in a zip-lock bag with a big X on it, so not to get confused.
I use a portable, $5 drink mixer to make sure it is titurated properly for about 5 minutes.
Take your time.
Have a print out of the recipe, and mark off the ingredients as you go.
Use gloves, why chance it?
Simple precautions go a long way, after all, it is YOUR health!
Please PM me if you have any concerns.
I've been mixing for almost
three years. ( I just can't seem to go any lower then 1.6%, I get the heebie-jeebies any lower, but I started at 2.4%, so, I have reduced some.)