Presto Over Pressure Plug 09915

You should inspect the plug regularly for signs of hardening, cracking, or brittleness. As a general rule, it is best practice to replace it at least once a year, or immediately if you notice any physical degradation, to ensure the safety mechanism functions correctly.

This specific plug, model 09915, is designed for many Presto pressure cookers and canners, but it is not universal. Always check your owner's manual or the specific model number of your unit to confirm compatibility before purchasing.

A worn or brittle plug may fail to seal properly, causing steam to leak during cooking, or worse, it may fail to release excess pressure in an emergency. Replacing it is a critical safety step that ensures your cooker maintains the correct internal pressure.

Replacing the plug is straightforward and typically requires no tools. You simply push the old plug out from the inside of the lid and press the new one into place, ensuring it is seated firmly and securely.

While it might look clean, rubber materials degrade over time due to heat and pressure exposure. Because this part is a primary safety feature, it is safer and more reliable to replace it rather than attempting to clean or reuse an old component.