Intended for use in pipes that will not accept a 6mm or 9mm filter, Denicool filter crystals are designed to fit in the bottom of a pipe's bowl and emptied out following a smoke.
There are plenty of naysayers of this product in many forums. But, those are usually pipe-snobs, those who say "i'd never put something 'unnatural' in my pipe!'" My research found that these crystals are "Processed Silica"... in o... Read Morether words "washed quartz." They're simple, perform as advertised, don't change the flavor of my 'baccy like charcoal and paper filters, and they provide nice draw to boot! IMO, these are second only to Savinelli balsa filters. They're probably great for a wet smoker with a filterless pipe. Read Less
To test I Tried them on a pipe that is a good smoker..about 1/3 way down
the pipe gave off a nasty burnt smell
HORRIBLE !! I had to dump them out and reload with out
the pipe was good again
To say those crystals don't affect taste are lying