Reply To: How to use a blech on shabbos?

Thanks so much!

Just to clarify if i want to put food from the fridge on the blech on shabbos morning i would have to either put it in a place that is cold enough not to reach yad soledes bo or i have to put it ontop of something that has been there from before shabbos like chulent or water in a pan (or some say an empty pot)?