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Thread: Temperature variations throughout the jug

  1. #1
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    Temperature variations throughout the jug

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hello! I just made 2 coffees drinking them right now :P.... BUT the weeeeeirdest thing...

    One, IS HOTTER THEN THE OTHER!... No im not crazy, one tastes really milky (when milk goes cold, or isnt cold enough it tastes milky to me, cant stand it)...and the other taste fantastic!.... Whats the go??? The one that was fine I poured first, and the one that tastes cold I poured second. I do have a tendency to make my milk colder then average (out of fear of burning the milk) but this is totally different.

    Im using a really small jug, 300ml or 500, I forget now but its small though! (just trust me on that ;)). I suspect that it might have something to do with my techique in the texturing stage. I tend to have the steam tip more towards the surface of the milk, maybe 2cm under? Enough so that the milk swirls, and that it is practically silent (in the 30c-50c range atleast, until the milk starts to hum a little tune :P). Basically no deeper then necessary. When I have it deeper I tend to hear lions roar! Which is not good from my understanding... :P Most people Ive seen look like plung the wand much deeper then what I usually do.

    Just as I was typing this, the temp on the good coffee dropped to about the same temperature that the colder coffee was initially. So we are talking a good 5-10 minutes of temperature difference.

    So, any ideas, suggestions, or insights into the laws of thermodynamics? :)

  2. #2
    Sleep is overrated Thundergod's Avatar
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    Re: Temperature variations throughout the jug

    Are you measuring the temp with a thermometer or just judging by taste?

    If you arent using a thermometer then theres room for doubt about your judgement.

    Did the "colder" one have more foam?

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    Re: Temperature variations throughout the jug

    The colder one actually had less foam, and no :( Wish I had used a thermometer! I am pretty sure my tongue thermometer wasnt lying though.. I shall try again tomorrw and see if I can reproduce it.

  4. #4
    Sleep is overrated Thundergod's Avatar
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    Re: Temperature variations throughout the jug

    Foam can act as an insulator.
    Maybe thats why the foamier one tasted "hotter".

  5. #5
    Senior Member GregWormald's Avatar
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    Re: Temperature variations throughout the jug

    The aeration in the foam also intensifies the taste and the release of the essential oils onto the tongue.
    Greg

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    Re: Temperature variations throughout the jug

    Just a follow up, I have not quite been able to reproduce my random temperature variations (well not a degree that couldnt be blammed on other thing :P) I think my random temperature variation was a combination of a not heating the milk quiiiite hot enough (a problem which has now been rectified :)) and definatly something to do with the amount of foam. Who knows, maybe I was onto something ;)

    Sorry for my crazyness :)

  7. #7
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    Re: Temperature variations throughout the jug

    were the cups the same temp to begin with?

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    Re: Temperature variations throughout the jug

    Wow! Thats a darn good point! I can guaranty that they wouldnt have been :P One would have been hottish to the touch, and the other warmer then room temperature but not by a whole lot... I think we have a winner :) Ill try and reproduce this next time I get a chance! Would never have thought cup temperature would have made that big of a difference though

  9. #9
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    Re: Temperature variations throughout the jug

    Slightly off topic - but related to the amount of foam above. One thing I used to struggle with was getting a equal amount of foam in each cap. One thing that Hazel De Los Reyes taught in her course was to pour half the 1st coffee, then the whole 2nd coffee then back to finish off the 1st coffee.
    Since adopting this technique I end up with perfectly balanced amounts of foam........




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