can i use pre-ground coffee in my delonghi automatic espresso machine?

Yes, via the bypass doser. Procedure is specific.

1. Ensure the bean hopper is empty and clean.
2. Locate the bypass doser compartment, usually on the front or side of the machine.
3. Use only the quantity recommended for one cup (approx. one level scoop). Do not overfill.
4. Select the pre-ground coffee function on the control panel before starting the brew cycle.
5. Run a rinse cycle after using pre-ground coffee to clear the chute.

If that didn't work, the pre-ground coffee may be too coarse or too fine. Adjust the amount. Too fine can clog the system.

Heads up: Using pre-ground coffee frequently can lead to faster buildup in the brew unit. Clean it more often.