I rant though my Moccamaster, and i was shocked. It looked like I had very dark tee or light coffee in the carafe after it ran through. Coffee was much better the next day. I would highly recommend this product. Much better than any vinegar based solution.

Purchased on Gene Cafe recommendation
I ordered Roaster Cleaner but Gene Cafe sent coffee pot cleaner with not any suggestions on how to use it. I needed to use all three packets to make enough diluted cleaner to partially submerge my roaster's parts. I needed to soak the roaster's chamber for about 45 minutes turn it and continue soaking. I really needed 3 boxes (8 or 9 packets) to make enough. I would rate to job this did at poor to ok at best for removing the oils and stains though it did make the clean areas shine. I would not recommend this to clean roaster parts. Needless to say I would never buy it again. Don't be scammed!!!