Can I Use A Non Pressurized Portafilter?

Since non-pressurized baskets brew directly into the cup without forcing the espresso through a tiny hole, inconsistent or too coarse/fine grounds will result in poor shot extraction — it won’t be pulled in the correct time or have any crema. Do you need to tamp pressurized portafilter? Pressurized portafilters (generally) do not need tamping down … Read more