Okay carto-folks. I was using the PBusardo method (boiling in H20) of cleaning a couple cartos earlier today and was inattentive (we all make mistakes, right?). I left the water boiling a little too long and discovered my cartos dry roasting in my pot for a few minutes, but they don't smell burnt. The smell super clean and fresh actually. Haven't tried them on a battery yet; they're hanging out and drying on the windowsill, waiting for their fate. Bottom line: did I just ruin these?