Well, to be honest, all I did was run water through it a few times. That worked fine except my everyday coffee cup, (Tervis) does not fit under the place where the coffee comes out, I could see that if the bottom pulled out, the cup could slip in. However, it's not a big deal to use a different container, then pour it in my cup. While going through the manual about using a paperclip to clean the needle part, it dawned on me that that might fix the problem of my Keurig...and it did. However I'm going to hang on to this one, as my Keurig is pretty old, and kind of making a chugging sound. Now, I'll have a back up I'll be very happy with, and it won't take up so much counter space, and it will match my kitchen!! Looking forward to using it!