Assertion: safety valve's pressure | /r/CapableOf | exceed atmospheric pressure
Facets:
value: to prevent accidents
type: PURPOSE
Source sentences:
text: Also, newer generation pressure cookers have a safety interlock which locks the lid when internal pressure exceeds atmospheric pressure, to prevent accidents from a sudden release of very hot steam, food and liquid, which would happen if the lid were to be removed when the pan is still slightly pressurised inside (however, the lid will be very hard or impossible to open when the pan is still pressurised).