I recently started to mix my own juice and it has been really nice for most parts. But now for the second time happened this. I made a new juice just about the same way i allways make. Used it a little. Was delicious. But then it started to have this pretty awfull metallic taste and lost allmost all of its original flavor. This happened in a matter of 2-3 hours. Its not my tank because i used two different tanks and one rda with the same juice and now all taste horrible. I dont want to buy these replacement coils for nothing so any ideas what could cause this and how can i prevent it?