OMGosh! Can you believe that the guys in our office haven't washed the office coffee pot since October? Yes, October of last year! That's the reason I ALWAYS bring my coffee from home. (Lol) I finally couldn't take it anymore and decided to clean it for them. I scrubbed and scrubbed and scrubbed with HOT soapy water! I was so happy with the results but can you believe they were upset with me? They said that I scrubbed away all the flavor. I couldn't believe it! I said, that wasn't flavor that was FILTH! Lol It has been 3wks since I cleaned all the pots and I think they are finally getting use to the idea of drinking out of a CLEAN coffee pot.