Reply To: Thickness of Blech

I use a blech to cover all four burners, keeping only two opposite end ones on very low. UNDER the blech and directly over the burners, I keep flame tamers, which are perforated thick metal discs. They are meant to typically be used under any pot, to turn it into a double boiler. Thus my blech has its own blech under it. By the time a pot actually goes onto the blech, it is like a kli shlishi.I also cover the blech with tinfoil, so make that a kli revii.