Choose according to the size of the pot: When choosing a tempered glass lid, the first thing to consider is the size of the pot. Make sure that the inner size little small than the inner dismater of the pot and the outer diameter of the lid is slightly larger than that of the pot to ensure that it can effectively cover the whole surface of the pot.Pay attention to the thickness: In addition to the diameter, you should also pay attention to the thickness of the pot lid. Select the lid with a thickness between 3mm and 5mm to ensure that it can withstand high temperature and external impact and ensure safe use.Observe transparency: The transparency of the tempered glass lid is one of its important characteristics. Choosing a pot lid with high transparency allows you to clearly observe the changes of food during the cooking process and adjust the heat and time in time.Consider brand and quality: When buying tempered glass pot lids, you should also pay attention to choosing well-known brands and products with guaranteed quality. This can ensure the quality and safety of the pot lid and avoid unexpected situations during use.