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Thread: Heat sink to cool your beans

  1. #1
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    Heat sink to cool your beans

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi Everyone,

    I had a bright idea today and thought Id share it - Ive not heard of this being done elsewhere, but maybe its common place.

    I went to roast some beans today and realised that the colander that I normally use to cool the beans was on the sink waiting to be washed (would you believe someone used it to drain spaghetti!). Now, I could have washed it, but that seemed too much like hard work. So headed to the pots and pan cupboard to see what I could use... yes, my other half was out, so I could get creative here!

    I found two loaf tins that were quite heavy and would hold a lot of heat. Then it came to me - they were slightly tapered and nested or stacked nicely, leaving about an inch gap between their bases... fill this gap with ice and water. The top tin gets really cold, yet stays dry. The tins and ice act as a heat sink for the hot beans you dump into the top tin. It should be able to absorb quite a lot of heat.

    So, I tried it. It cooled my beans in half the time it takes with a colander - just agitate the beans in the tin so they all get a chance to touch the cool surface. I hope someone else finds this technique useful!


    Cheers,

    Dan


  2. #2
    Mal Dimal's Avatar
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    Re: Heat sink to cool your beans

    Very creative Dan.... 8-)

    Probably the only thing you need to watch out for is the presence of any condensate on the surface of the internal pan. Water is the enemy of coffee.... :(

    Mal.

  3. #3
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    Re: Heat sink to cool your beans

    I guess you would have to keep an eye on humidity and dew point, so if there is a high humidity or dew point that would become more of an issue. So in tropical areas this method wouldnt be very good I would assume.

  4. #4
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    Re: Heat sink to cool your beans

    Behmor Coffee Roaster
    Regarding condensation, if you put the hot beans into the tin before putting it into the ice water, the tin will not (should not!) get cold enough to cause condensation.

    Thats how I did it today and it looked fine - no visible signs of condensation. But yeah, definitely something to keep in mind.




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