I know a lot of people on this board say cleaning with Alcohol is bad but I thought I would see for myself. I bought a bottle of 91% pure alcohol and let it soak for 30 minutes.. rinsed it out, let it sit for 24 hours and gave it a shot. Works just like it did when it was new. Before the thing would not even produce vapor at all. A lot cheaper than everclear and vodka as well.