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Thread: The slower you heat tea up...the longer it stays hot...

  1. #1

    The slower you heat tea up...the longer it stays hot...

    Does this mean anything to you guys?

  2. #2
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    I hope you don't mean that literally.

    And if you don't, because it's not true, it's therefore a bad analogy to any conceivable situation.
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  3. #3
    no. an old chinese man told me, what did he mean?

  4. #4
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    He probably means don't rush things.
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  5. #5
    That old chinese man must write for the fortune cookie company that I get my chinese food from.

  6. #6
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    Re: The slower you heat tea up...the longer it stays hot...

    Originally posted by mossman
    Does this mean anything to you guys?
    Do I need to drop some Thermodynamic knowledge on your arse?

    Yes it means don't believe everything you hear.
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  7. #7
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    No, it means if you heat tea too quickly, you could burn it.
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  8. #8
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    Originally posted by Chief Fox
    No, it means if you heat tea too quickly, you could burn it.
    No it doesn't. If it meant that they would just say that.
    "If you like metal you're my friend" -- Manowar

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  9. #9
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    Originally posted by IronFist
    No it doesn't. If it meant that they would just say that.
    good point.
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  10. #10
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    How about this-

    If you define 'hot' to be 100C
    And we define 'heat up' to mean bring from 20C - 120C
    And we define the time for how long it stays hot the length of time it takes from the point the temp of the tea reaches 'hot' (or 100C) and above, to the point when it cools down below our 'hot' threshold
    And we assume all other equal conditions for cooling down

    THEN.... if we take the time to heat it up to 120C, then the the delta of time between the point when the tea is heated to our hot threshold of 100C and the time we stop heating it up (bring it to 120C) and it cools back down to below 100C will be longer if the time we take to 'heat' it up between our 'hot' point and our cut off point of 120C is longer.

    OK, try to make sense of THAT

    ::grin::

  11. #11
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    I think the old guy was just trying to be esoteric.
    old chinese guys will do that.
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  12. #12
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    I think he was talking about seducin' yo' woman.

    Work on that foreplay for a few hours, then du-Yam!
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  13. #13
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    But if you stop smoking crack, water will cool at the same rate regardless of how quickly it was heated.

    The only exception I can think of would be if there was some material for which a slow heat (longer exposure) caused it to change somehow to a different material that held heat longer, and if you heated it up quickly it would not undergo the same chemical change, but that's not what we're talking about here. I don't even know if such a material exists. Physics/chemistry people?
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  14. #14
    Greetings,

    I remember hearing someone say that microwaved food cools off faster. Maybe there is some truth to the statement.

    mickey

  15. #15
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    Originally posted by IronFist
    But if you stop smoking crack, water will cool at the same rate regardless of how quickly it was heated.
    Yes yes, but the point is, if you have a fixed temp that you're heating to and that target temp is higher than the temp that you'd consider 'hot', then since the water cools at the same rate from the target temp, you potentially have a longer period at which the water is 'hot' if you heat it slowly enough that there's a time difference between reaching the 'hot' temp and the target temp.

    Here's a break down of an example-

    temp range normal heating slow heating
    20C - 100C 90sec 120sec
    100C - 120C 20sec 45sec
    120C - 99C 600sec 600sec
    HOT ( > 100C) 620sec 645sec

    so in this case, for this particular definition of HOT, the slower we heat the tea, the longer it's hot

    of course I'm totally ignoring the word 'stays' ::grin::

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