Man of Honour
.... and a cup of hot coffee.....
Musings on cooling down coffee...
- Thread starter Haggisman
- Start date
.... and a cup of hot coffee.....
I remember standing in a lab cooling some water with a thermometer in it, first using a fan and then without, taking readings over time and then plotting a graph to compare the readings.
I doubt I'll be able to find my GCSE physics notes from almost 20 years ago though
Soldato
Get one of These and take freshly ground coffee in (the base holds enough for two decent mugs of coffee)
Was the best solution I could find to not having access to decent coffee at work
Copy Cat
Agreed. The problem for some people is they'd rather not drink tap water without boiling it first. Better to boil and wait if you have the time.
Soldato
Soldato
I got a 'warning' for 'insulting' another member with that exact phrase
Good. Man the **** up and deal with it yourself.
Permabanned
Never had this problem, I just sip it.
You know?
You know?
Soldato
Permabanned
If you can't sip it there is something seriously wrong with you.
Well, since this is less musings about coffee, and more musings about thermodynamics and heat transfer, I applaud the OP. I'm sure, from the OP, that this is already common knowledge, but it may help if not
Q = mc*Delta T
Q = heat energy ; m = mass, c = specific heat, delta T = the change in temperature
So you'll need to know the mass of the mug, assume a mass of 1 kilo per litre for the coffee (if it's instant anyway, it's mostly water) and maybe marginally higher for the milk, but we could fudge it a bit.
If you measured the temp before and after adding the milk, we can work out the energy exchanged at different temperatures, and you could compare that with set time periods of heat radiation with and without milk.
Do it. Graph it. Let us know the results.
Q = mc*Delta T
Q = heat energy ; m = mass, c = specific heat, delta T = the change in temperature
So you'll need to know the mass of the mug, assume a mass of 1 kilo per litre for the coffee (if it's instant anyway, it's mostly water) and maybe marginally higher for the milk, but we could fudge it a bit.
If you measured the temp before and after adding the milk, we can work out the energy exchanged at different temperatures, and you could compare that with set time periods of heat radiation with and without milk.
Do it. Graph it. Let us know the results.
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Caporegime
Add in boiling water, a little cold water and milk to desired drinking temperature.
Permabanned
Apparently if you just inhale coffee aroma it has the same waking up effect as actually drinking it.
Saw it on heston blumenthals program.
Or you could snort a line of coffee granules.
Saw it on heston blumenthals program.
Or you could snort a line of coffee granules.
Man of Honour
I have the opposite problem
I freeze my coffee to prevent it from being too hot. Then when I remove it from the freezer, I often ponder how to achieve the optimum thawing out speed
I freeze my coffee to prevent it from being too hot. Then when I remove it from the freezer, I often ponder how to achieve the optimum thawing out speed
Soldato
Wrong! You do not want the ice melting in your lovely coffee YUK
Actually I came up with a great tasting iced coffee yesterday
Here's how it worked
1 - Large tumbler (330ml) filled with 60% ice cold milk add 2 tea spoons of camp/chicory to taste (careful with this bit)
2 - Make concentrated hot instant coffee (150ml (just over half cup) with your preferred blend. For me 6-7 t-spoons of Douwe Egberts, 6 t-spoons of sugar. Mix thouroughly
3 - Now run the coffee over a tumbler filled with ice, don't let the ice melt. Pour the coffee (minus the ice) now chilled into the cold ice. Mix and enjoy
EDIT: Sod it I'm going to make one of these now
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Commissario
Make coffee. Drink. What's this milk rubbish?
Leave the spoon in it.
Tilt the cup until its almost spilling out and blow on it.
Add milk after about one minute. The temp of the coffee should reduce fairly quickly on its own in that time.
Just imagine the milk is NOS and you're racing for pink slips with the man who's just come out of the McDonalds drive through.
Tilt the cup until its almost spilling out and blow on it.
Add milk after about one minute. The temp of the coffee should reduce fairly quickly on its own in that time.
Just imagine the milk is NOS and you're racing for pink slips with the man who's just come out of the McDonalds drive through.
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