“Puckology”
Puckology is simply analyzing the spent coffee puck after a shot has been
made. Whilst it is by no means scientific, it can provide useful feedback
regarding the preparation of the coffee before brewing and extraction during
brewing.
With the Robot however spent puck analysis is not possible because the
results are very misleading. After you pull the shot and then raise the arms
again to remove the water, this draws air from below the basket, up through
the coffee. It will therefore dislodge the puck or even form a crack in the cake.
For example if we refer to the photo below of a used coffee puck from a very
good espresso shot. You will notice a large crack in the cake, we would
therefore assume channeling had occurred and our preparation was not ideal.
However because we have raised the levers, air has been introduced and
cracked the puck.
So in short, puckology is largely meaningless on the Robot.
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