Question: how to clean tfv12 coils?
Answer: Pop the coil head into the bowl.
Take the grain alcohol and fill the bowl up right over the coil head.
Let the coil head soak in the pure grain alcohol for about 6-12 hours depending on how gunky the coil is.
Pull the coil head out.
Rinse the coil head under hot water for 3-5 minutes.