by bruceb » Sat Nov 20, 2010 10:13 pm
I have done over 1000 roasts, more than 600 with the first filter and the rest with a second filter that I changed just because I had it. I did two test roasts using the same batch of beans with a new and a used filter and both the temperature profile and the results were indistinguishable, so I just never bothered changing. I found it much more important to completely disassemble the machine after a few hundred roasts and blow it out with compressed air as it had filled with chaf and a fine "fur."
Three Francesconi (CMA) espresso machines - Rossi, San Marco, LaCimbali, Faema and 2 Mazzer Major grinders- CoffeeTech Maggionlino, Hottop, Alpenröst and HW Precision roasters. I decided I needed a bit of a change so I roasted some Monsooned Malabar. That was a change!