I use my Drop-bar MIELE MTB or my MIELE UNO LS (adapted to a touring bike) for getting groceries and other stuff.
Drop-bar MIELE MTB with 10 eighty liters totes.
Converted MIELE UNO LS to touring after I used it to bring home a dehumidifier.
I put the four panniers on that MIELE UNO LS when I want to do a big grocery shopping trip.
Cheers
Cheers