What Is a Coffee Steamer?
Turning a cup of coffee or hot chocolate into a fancy beverage is sometimes accomplished by adding a layer of frothy milk to it. The tool that creates the milk layer is a steamer or frother. Does this Spark an idea?
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Technology
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Coffee steamers froth milk through direct pressurized steam injection. When the steam enters the milk, it creates froth or foam. A quick rotation of the tool increases the frothing action and makes more air bubbles. The temperature of the beverage remains constant because the milky topping is hot.
Styles
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Espresso machines have frothers attached to its side. The electrical current that powers the espresso making apparatus supplies the small metal steamer wand with pressurized steam.
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Temperature
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Regardless of the type of steamer, the milk temperature has to be exactly 150 degrees Fahrenheit when the frothing process is complete. If the temperature exceeds that, the froth will be watery and may have a singed or burnt flavor. If it's too cold the temperature and flavor of the beverage will be diminished.
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References
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