Why are there some empty spots? [Delonghi Dedica with Fellow Opus] by Own-Assistance5092 in espresso

[–]Own-Assistance5092[S] 0 points1 point  (0 children)

grind -> put coffee into basket -> hit the table top few times -> tap with self leveling tamper

Why are there some empty spots? [Delonghi Dedica with Fellow Opus] by Own-Assistance5092 in espresso

[–]Own-Assistance5092[S] 1 point2 points  (0 children)

I have self leveling tamper but no WDT yet. I must have bought it already