There was an earlier discussion about the inner workings of a super-auto.
One of the techs had Jura in for service so we took a picture of the main brewing unit.
Once the coffee grind is finished the brew unit motor drives a plunger onto the top of the ground coffee. *It continues to drive until it reaches its designed resistance. *This is the tamp of the coffee and is very consistent.
At the top and the bottom of the coffee are the shower screens.
Once tamped the pressure pump starts to pump water into the water heater. *92 degree water starts to come out the other end of the heater and is forced into the ground coffee. *Out the other side of the ground coffee comes the fresh espresso which is piped into the outlet spouts.