Hi Martyn True, the pressurised portafilter doesn't need a tamper, but I changed over to the non-pressurised one a few months back, and glad I did. I also had a plastic one which was better than the bottom of a glass, but didn't really cut it. Now, thanks to John, I am in possession of a platinum handled, diamond headed tamper for $5 (perhaps it was a polished aluminium one and perhaps it wasn't $5 - the fumes from burnt plastic may have been getting to me) Patrick