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I think I remember learning once that one can kasher something that requires libun (e.g. a pan or cookie tray) by cleaning it and putting it in a self-ceaning oven. Is this true? If so, it sounds much easier than using a blowtorch.

  • The halachos for ashkanazim and sefardim are different – sam Mar 28 '14 at 3:24
  • Make sure the item in question can take the heat of the self-cleaning cycle. – Ephraim Mar 30 '14 at 3:11
  • If you do this, and there is any residue left in the oven afterwards besides white ash, there is something wrong with your self-clean cycle. – Fred Mar 30 '14 at 4:46
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According to the 2014 OU Jewish Action Passover Guide on page 14 under "Libun (Burning)"

On Line THE KASHERING PRIMER – PASSOVER 2014

A self-clean cycle of an oven(approx 850 degrees F) also qualifies as libun

I have done it but it can also mess up some utensils. I was also been given this advice by the Baltitimore star-k, when I called the office.

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