Make Your Own Fire Bowls #2 - 3b. Spray PAM over mold + canned good. 4. Pour concrete into mold. 4b. Pour halfway, place can in center + fill around can. 4c. After about 6 min, I rotated my can, wiggled side to side + popped it out. PAM is awesome. 5. At 17 min mark, Cover mold top with newspaper stack. Flip over carefully; concrete form slips out. PAM is awesome. 6. + 7. Place loose rocks along rim of concrete form. 8. + 9. Put fire gel pack in center hole; light with long match.