Hi guys, i've been doing my coffee now for about 6 months so am barely out of nappies but things have been going ok. i've been using andy's 'espresso wow' beans for the last couple of months (fresh order each month) and everything was ok, but i decided i'd like to try something different so bought some beans from a local roaster (sorry andy). obviously this then requires some fiddling with the grind etc which is where the need for some better diagnosing comes in.
i have always dosed the same way. fill the portafilter to a mound, tapping on the mat a couple of times during the fill to settle the beans, then level with a knife and tamp. i did the 5c test initially and then i just take note of how far the tamp goes in each time and my dosing is pretty consistent. previously, after the pour, i would always take note of the puck and there would always be a nice imprint of the shower screen on top, and it would knock out of the filter leaving the filter virtually clean. now, with the new beans, i've noticed when i pull the handle out, there is no smooth surface to the puck due to some of it staying on the shower screen. it knocks out ok but does leave bits around the edge.
when i bought the machine i did a 'sweet spot' test, whereby you use the empty double wall single basket and take note of where the pressure guage sits. for my machine (em6910) that was around 10 o'clock. getting back to the problem at hand, the pressure sat around 11:30 on the guage, so combining that with the fact the puck was sticking a bit to the showerscreen, does that mean its still a bit wet? do i need to go a bit coarser on the grind? or even finer? finer would go close to choking the machine i think.
any help appreciated. if you need some more info, just ask.
also, another issue i have occasionally is the pour seems to go light very quickly.
thanks
Rob
i have always dosed the same way. fill the portafilter to a mound, tapping on the mat a couple of times during the fill to settle the beans, then level with a knife and tamp. i did the 5c test initially and then i just take note of how far the tamp goes in each time and my dosing is pretty consistent. previously, after the pour, i would always take note of the puck and there would always be a nice imprint of the shower screen on top, and it would knock out of the filter leaving the filter virtually clean. now, with the new beans, i've noticed when i pull the handle out, there is no smooth surface to the puck due to some of it staying on the shower screen. it knocks out ok but does leave bits around the edge.
when i bought the machine i did a 'sweet spot' test, whereby you use the empty double wall single basket and take note of where the pressure guage sits. for my machine (em6910) that was around 10 o'clock. getting back to the problem at hand, the pressure sat around 11:30 on the guage, so combining that with the fact the puck was sticking a bit to the showerscreen, does that mean its still a bit wet? do i need to go a bit coarser on the grind? or even finer? finer would go close to choking the machine i think.
any help appreciated. if you need some more info, just ask.
also, another issue i have occasionally is the pour seems to go light very quickly.
thanks
Rob

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