Even though a machine is used in manufacturing brooms, the whole process is not completely automatic.
-- Wet the bundles of seedless tassels
-- Secure layers of broom straws around the handle
-- Clamp the crude broom in the machine to shape it and press tassels tight and steady until the
-- worker stitches individual pieces together.
-- Trim the ragged ends even to have a beautiful broom.
Little waste is produced during the whole making process. However, those short tassels needed removing away at once because they are flammable.