They're kind of independent whereby the group head will eventually overheat if being left on for a while (not recommended) even if the pressure remains consistent (0.8 bar ish is seen as optimum).
Deffo agree with pulling a mug of water to heat the portafilter, group and the mug!
Also give the steam wand a blast before pulling any water as false pressure can build up too!
Good info! I'll look in to it and figure out what's going to suit my needs. I'm off work with a cold today, looking forward to knocking out a load of espresso I'll barely be able to taste.
They're kind of independent whereby the group head will eventually overheat if being left on for a while (not recommended) even if the pressure remains consistent (0.8 bar ish is seen as optimum).
Deffo agree with pulling a mug of water to heat the portafilter, group and the mug!
Also give the steam wand a blast before pulling any water as false pressure can build up too!