Living at elevation I got rid of my CCD. I could not keep my water temperature in the plastic above 195°. Water boils for me at 203° and it would drop below 195° within one minute of the brew cycle. I tried preheating the CCD, like I do with my V60, but there was just not enough mass to hold any temperature. I am really excited about the Bonavita. I have high hopes that it might work for me.