Dookie and their other mid nineties albums are actually produced pretty cleanly, they don't have a raw/demo-like sound. When they made Dookie they originally wanted it to sound really raw and mixed it that way but they found it didn't sound good so they changed their mind and mixed it again. It's very clear/clean sounding, as are all the albums that followed. I don't really associate Green Day with a particularly raw, punk sound, they've always had that pop influence (even on the first two albums, which sound rawer due to the resources that were available to them at that time but still have a large amount of pop elements in the music).