yes the same screen but lets try this take a wet leaf and squeeze it in your hand and in the other take a real dry leaf and squeeze..what happened you have leaf dust in the dry had and in the other yoiu have no dust. The water in a ice or bubble bag helps keep the plant matter down as its moist and not as fine so easier to catch as it clumps more. Same as in iso hash. Thats my point and if your around enough hash people you ll see they alsways call a dry sift kief just like whats in your grinder screen when you grinmd and hash is always made differently. now in bubble bags you have about 8 grades of hash your using 1 screen so your not removing the bigger matter before hand your rubbing it all into the screen. If you did 8 screens youd be getting closer to hash. Its still good to smoke just isnt really hash but a higher grade kief