1 The material of the glass is ordinary soda lime glass, crystal glass, or borosilicate tempered glass
2 The glass baking tray mainly depends on the material color of the glass itself, no variegated, transparent, high brightness, and will not turn yellow, foggy or blue after a long time
3 Is the thickness of the glass baking tray uniform and how heavy is it? Usually, the thicker the dish, the stronger the drop resistance
4 The appearance, shape and internal structure of the glass baking pan, the more complex the appearance, the more novel the higher the cost
5 The edge of the glass baking dish is smooth, does not scratch or hurt hands
6 Bubbles inside the glass, the fewer the number, the better, and the smaller the bubbles, the better