oops, sorry. I am bad at spelling english so i should said "sides"
by "flies out" i mean i placed particles inside the plane so they would have movement.
If they're glued, do the following:
1) pick all the food inside
2)pick "invert selection" option
3)press on a plane and pick circles in select <- selection
4)geometry actions -> loosen
5) right click and 4) actions again