Can I warm up a cold Challah (or other dry baked foods) on Shabbos day by putting it in an oven that is on from before Shabbos? Or directly on a Blech?

  Oven that’s still on – No. כך נפסק בכ”מ, … Continue reading Can I warm up a cold Challah (or other dry baked foods) on Shabbos day by putting it in an oven that is on from before Shabbos? Or directly on a Blech?