From my Google news recommendations (the algorithm is learning)... From Idroprep, the same company that produce the Espazzola grouphead scrubbing device.

Interesting to see some genuine innovation in a space that's been pretty static for a while; whether it offers any real benefit remains to be seen.
While it looks like a normal tamper from the outside, a glimpse from below reveals that instead of a solid steel bottom, the Idroprep features a squishy polyurethane gel pad. When pressed upon a bed of ground coffee in an espresso basket, the pad hydroforms the coffee puck.

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