colored vape pen smoke?

1. 2019-10-16 at 12:18 AM UTC

   #1
   username: African Astronaut
   can it be done? I want to market it.
2. 2019-10-16 at 12:25 AM UTC

   #2
   The Self Taught Man Black Hole
   try putting food coloring into your vape and tell us how it goes.
3. 2019-10-16 at 2:03 AM UTC

   #3
   GAAAAALM African Astronaut
   It can be done but it won't be healthy. Fog machines which use propelyne glycol will gunk up and break with coloring. But yeah, they do use food dye.
   
   Usually they just use lights to color fog.
4. 2019-10-16 at 3:14 AM UTC

   #4
   

   the man who put it in my hood Black Hole
   Vapor has no color