Where do I buy the springs inside the portafilter?The springs for my portafilter need to be replaced. The guide (Starbucks Barista portafilter disassembly and cleaning)...
"Why is there no flow through the portafilter?"に関する回答I had a similar issue. I found if I moved the portafilter to the right and held it there, it would flow well, if not the pressure would mount and would not flow. Check your springs in your portafiler, and take it apart to clean it a bit.