When I got my Ijust 2 kit it came with a .3 ohm coil. I also ordered .5 coils. The .3 coil was a bit too much so I replaced it with a .5. My question is where is the best place to store a good coil that is barely used yet thoroughly primed? I put mine in a zip lock baggie but began to worry about mold/mildew etc. Is it safe?