How do you handle pressure? To be clear, we're not talking every day stresses because we're coffee experts, not life coaches. We're talking about the built up pressure created in the brew head that doesn't completely escape through the bottom of the portafilter. Google "portafilter sneeze" and you'll see that most lever machines will require one strategy or another in order to expel the remaining the pressure in the brew head or else you may have coffee grounds flying when you go to unlock the portafilter. On the 58 & 58x equipped with a valve plunger, you will notice this sneeze happens from the chamber during a purge.
We have some thoughts and strategies that we would like to share with you on how to minimize the amount of compressible air in the system, as well as how to properly bleed off pressure at the end of the shot. Please join us Sunday, October 31st, at 10:00 PDT so that we can share our tips and answer any questions you may have on the subject.