No, the silicone sealing ring of a pressure cooker will not last forever, even if it is permanently fixed to the lid at high temperatures. Silicone, like any material, undergoes wear and degradation over time due to various factors such as heat, exposure to steam, and repeated use. While silicone is a durable and heat-resistant material, it does have a limited lifespan.
Here are a few factors that can affect the lifespan of a silicone sealing ring:
Heat Exposure: High temperatures can cause the silicone to degrade over time, leading to loss of elasticity and effectiveness. The constant exposure to steam and heat during pressure cooking can accelerate this process.
Wear and Tear: The sealing ring undergoes repeated cycles of compression and expansion during each use of the pressure cooker. Over time, this repetitive stress can cause the silicone to deteriorate, lose its shape, or develop cracks.
Cleaning and Maintenance: Proper cleaning and maintenance of the sealing ring are essential for its longevity. Failure to clean it regularly or remove food particles and debris can lead to bacterial growth or mold, compromising the integrity of the ring.
Manufacturers typically recommend replacing the silicone sealing ring of a pressure cooker after a certain period, usually every 1 to 2 years, or sooner if signs of wear, damage, or loss of effectiveness are noticed. It is important to follow the manufacturer's guidelines and inspect the sealing ring regularly to ensure safe and efficient operation of the pressure cooker.