What is the maximum temperature the lid can withstand?

The maximum temperature that the Silicone Self Sealing Lid can withstand depends on the specific product and manufacturer.  However, most high-quality silicone lids are heat-resistant up to 446°F (250°C), which makes them safe to use in the microwave, oven, and dishwasher.  It is important to always check the product specifications and instructions before using the lid with hot food or in high-temperature environments.  Using the lid beyond its recommended temperature range can cause damage to the product and may even be a safety hazard.