Abstract: A forehearth system includes a superstructure including refractory bricks that frame a molten glass tank, with a burner block including a discharge throat that extends its distal end formed from a refractory material that is within the superstructure above the molten glass tank. At least one oxygen fuel forehearth burner is within the burner block including a burner body, a fuel pipe within the burner body having a fuel inlet for receiving fuel and a fuel outlet, and an oxygen pipe within the burner body having an oxygen inlet for receiving oxygen and an oxygen outlet. The oxygen pipe is positioned coaxially outside the fuel pipe. The fuel outlet extends beyond the oxygen pipe and beyond the burner body so that the oxygen first reaching the fuel and thus a flame when operating is delayed until the discharge throat.