Everything you want to know
Baristas are well aware of the inconvenience of having to lean on the counter to press coffee on the porta-filter for espresso.
For this reason, this tamper rubber surface is ideal so that the porta-filter doesn't slip and doesn't wear out or damage the support surface.
The corner rubber mat is the ideal product to complete a correct coffee pressing in a balanced way. This mat has the shape of a black rubber filter holder.