Hi all, I currently use a motta 58mm tamper with my 18g IMS basket and there is a definite gap between the tamper and the edge of the basket.
What I’m not sure about is what tamper size I actually need: 58.4, 58.5 or even 58.55 (this size might be Lelit specific)? The Bella Barista website says 58.4 fits the IMS basket perfectly but I think plenty of people on here use 58.5mm tampers. Do I need to worry this much about 0.1mm?!
Using a Profitec Pro500 with bottomless portafilter.