There is never a vacuum.
Prestige Pressure Cooker problem
- Thread starter Lucky Luke
- Start date
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Once the steam stops being generated, and the inside of the pan cools, then (unless there is something to release the vacuum) there will be a vacuum.
There is never a vacuum.
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A simple experiment for you...
Fill an inverted plastic pop bottle, with steam from a kettle, then quickly fit the top. Allow the pope bottle to cool, and it will collapse due to the internal vacuum. However, if you meant there is never a vacuum in the cooker, because the valve is designed to release a vacuum, then say so.
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