To be effective against disease-causing pathogens, steam must be what?

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Prepare for the Salon Safety and Sanitation Infection Test. Utilize flashcards and multiple-choice questions with hints and explanations. Ace your exam!

Multiple Choice

To be effective against disease-causing pathogens, steam must be what?

Explanation:
Steam has the strongest sterilizing effect when it’s under pressure. Pressure raises the boiling point of water, so steam can reach temperatures well above 100°C—around 121°C (250°F) in common sterilization settings. That higher temperature, kept for an appropriate amount of time, is what reliably kills disease-causing pathogens, including tougher spores, and helps steam penetrate porous items. If steam isn’t pressurized, it stays at 100°C and may not achieve the necessary heat or contact, so effectiveness drops. Filtering or heating alone don’t provide the needed high-temperature, penetrative conditions. So the essential factor is steam that is pressurized.

Steam has the strongest sterilizing effect when it’s under pressure. Pressure raises the boiling point of water, so steam can reach temperatures well above 100°C—around 121°C (250°F) in common sterilization settings. That higher temperature, kept for an appropriate amount of time, is what reliably kills disease-causing pathogens, including tougher spores, and helps steam penetrate porous items. If steam isn’t pressurized, it stays at 100°C and may not achieve the necessary heat or contact, so effectiveness drops. Filtering or heating alone don’t provide the needed high-temperature, penetrative conditions. So the essential factor is steam that is pressurized.

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