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Steam is the name given to water when it is in a gas form. Steam is sometimes thought of as a cloud of translucent mist, however that is only the result of the steam condensing in the air, forming water vapor. Actual hot steam is invisible.^[source?]

When the pressure of the atmosphere is 1013 mbar – average pressure for a place which is at sea level – water will boil to become steam at 100 °C. This is the boiling point. Boiling happens in a boiler. 100 °C is the same temperature as 212 °F, 80 °R and 373.15 Kelvin.^[source?] Steam is mainly used for powering up steam engines. A steam engine is a heat engine performing mechanical work using steam as its working fluid.^[source?]

Steam gets sometimes used for heating food. In a pressure cooker, some water turns into steam, and some steam gets released (or let out) thru a valve.

There are other ways to steam food.

• Steam -Citizendium

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