Glass coating composition, manufacturing method for coated glass using the glass coating composition, and cooking apparatus using the coated glass

A method of manufacturing a coated glass, comprising:

• preparing a base material including a glass;
• applying a glass coating composition onto the base material;
• firing the base material and the coating composition to form a coating layer on the base material;
• and
• cooling the base material on which the coating layer is formed, wherein the glass coating composition comprises:
• 90 to 99 wt % of a glass composition, and
• 1 to 10 wt % of nanopowder added to the glass composition,
• wherein the glass composition comprises:
• 20 to 40 wt % of phosphorus pentoxide (P2O5),
• a total of 15 to 30 wt % of aluminum oxide (Al2O3) and zirconium dioxide (ZrO2),
• a total of 10 to 30 wt % of sodium oxide (Na2O) and potassium oxide (K2O),
• 10 to 25 wt % of boron trioxide (B2O3), and
• 10 to 15 wt % of zinc oxide (ZnO).