h a l f b a k e r yI never imagined it would be edible.
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The cooking time of tea or coffee depends on the temperature of the water, not on if its boiling or not. bad science? |
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"Bad" is such a pejorative term. |
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Around my shop "BAD" stands for Built As Designed. |
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I'm ordering, but does the water not boil at
a lower temperature ? + |
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I can't remember much of my A level
chemistry, but I'm certain a reaction (of
any kind) is speeded up under pressure. So
if indeed you could generate a significant
vacuum within the kettle (it would
obviously be reinforced and need to be
structurally stronger than the average
Russell Hobbs) it would be possible to heat
the water quicker. |
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You won't be able to pull a vacuum as the air will be replaced with water vapo(u)r. Trust me, I know. |
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It depends how big the kettle is, [egbert]. |
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/You won't be able to pull a vacuum as the air will be replaced with water vapo(u)r./ |
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It is admittedly not a perfect vacuum. However, the vacuum pump runs constantly while the kettle is in action. Generally when the vapor is really coming off fast, beyond the ability of the pump to keep up, the water is boiling and you are done. |
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/does the water not boil at a lower temperature/. It is actually possible to use the Vacuukettle without an external heat source, which makes it much safer than ordinary kettles. |
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The water will actually cool down as it evaporates. You can freeze it if you pump hard enough. |
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The water that has soaked into the leaves may have a lower vapor pressure due to contaminants. This may be a way to confine the evaporation/boiling to the leaves, and to make tea after all. |
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Reading this, I thought about cycling the pressure, then Googled up a reference to an ultrasonic tea extractor. They were going on about reducing tannins and bitterness, which would probably apply to this method as well. |
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You could always make solar tea, I guess. |
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