Continuous cleaning regular over
There are different opinions as to which method is indicated: (1.) Libun Gamur or (2.) Libun Kal. Consult with your Halachic authority as to which method is
required.
Libun Gamur
A torch must be passed over
each part of the metal interior
surface slowly enough so
that each part begins to glow
red. Thermostats should be
removed before this procedure.
WARNING: In the hands of the
inexperienced, this oftens leads
to destroyed wiring, warped
ovens and frayed nerves,
therefore only the experienced
should carry out this process.
Libun Kal
Apply caustic oven cleaner
liberally to all surfaces of the
oven, including the door. Check
the oven to see if all surfaces
are clean, if not, this process
must be repeated. The oven
should remain out of use for
twenty-four hours. Thereafter,
operate the oven at the highest
temperature for at least one
hour. The oven racks must be
in the oven while the Kashering
procedure takes place.