This really should have some photos attached, but meh, the pucks are in the bin...
With the new VBM I received 2kg of beans, and its taken just on 2 weeks to plough through them all. (No I didnt drink it all)
In that time, and particularly moreso as the beans aged, I notice more and/or larger defects in the top of the used grounds. Usually its a pit, maybe 5mm or so wide, with a smaller hole at the centre. Generally at or near the edge of the puck. Seems to fit the usual description of channelling. However if I knock out the puck theres no sign of defects at the bottom, and if I break it in half the pits dont seem to be any deeper than what can be seen from the top.
So is this worth worrying about? I am usually pretty careful about dosing and distributing (Stockfleth), my tamper is well undersize though. I dont really notice any dramatic problems in the pour or in the cup, but than again Im no expert...
With the new VBM I received 2kg of beans, and its taken just on 2 weeks to plough through them all. (No I didnt drink it all)
In that time, and particularly moreso as the beans aged, I notice more and/or larger defects in the top of the used grounds. Usually its a pit, maybe 5mm or so wide, with a smaller hole at the centre. Generally at or near the edge of the puck. Seems to fit the usual description of channelling. However if I knock out the puck theres no sign of defects at the bottom, and if I break it in half the pits dont seem to be any deeper than what can be seen from the top.
So is this worth worrying about? I am usually pretty careful about dosing and distributing (Stockfleth), my tamper is well undersize though. I dont really notice any dramatic problems in the pour or in the cup, but than again Im no expert...

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