Hoosier, you’re making regret my “generosity” in gifting my one and only Falcon to a buddy. He was having problems sourcing one locally and in an impulsive moment I said he could have mine. He loves it.Almost none. When it cools a bit, unscrew the bowl, swab out the humidome and you are good to go. You rarely need a pipe cleaner cause the juice collects in the bottom of the aluminum stem(the humidome). They are GREAT pipes!