I've found coffee flavors to be a real pain to clean out. Here is my method for cleaning. First, soak the atty in PGA, for at least an hour. If it's a REALLY stubborn flavor it may need to soak overnight. Once it has soaked really well, rinse it with VERY hot water. Be careful not to burn yourself, as I have
Let it dry out. There are a number of different methods for quick drying, some people use the oven, some people use a hair dryer, I use the back of my computer monitor as it has several vent holes on it and they get nice and toasty.
After I am confident the atty is dry, I do a dry burn, which means putting the atty on a battery and pushing the button on it to get the heating element hot. This will burn off any residual
juice or gunk that is still stuck to it. DO NOT HOLD THE BUTTON DOWN FOREVER! You'll fry the atty. 5-10 second bursts seem to do the trick.
Also, if you are going to look down into the atty while dry burning, wear some sort of protective glasses as they can pop and send lava hot debris flying which could get in your eye. Trust me when I say it really really really hurts.
If I have an atty that won't shake the flavor, no matter what, I'll drown it in a French Vanilla I really love until the flavor of the offending
juice drops off to nil.
Steelrat