subway

Question

--If they are cooking the breads in metal pans, and they cook, let's say, parmesean cheese bread in one pan, and the next hour, they cook the white bread in the same pan after that, how are the white breads kosher? --"A pot can become not Kosher if it used to cook milk and meat within the same 24 hour period, if it is used to cook non-kosher food, or on Passover, if it was used prior to Passover for Chametz (wheat or barley or any of the 3 additional grains). Flavor from the foods cooked can remain in the walls even after being washed, and it can add flavor to food cooked in the pot afterwards." ---furthermore, how are the counter tops/cutting boards kosher, being that subway serves hot food (soups, steaks, chicken, etc.)? "Sinks, refrigerators, trash cans, counters, dishwashers, stovetops, tables, cutting boards, mixmasters, silver kiddush cups, and anything not used with hot foods from the fire do not need any koshering."