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Thread: Bean varieties and optimum rest times?

  1. #1
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    Bean varieties and optimum rest times?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Again, a broad generalisation type of question, but based on the feedback on this forum in the cupping section as well as the home roast section, putting roast profiles aside and assuming that they follow a standard profile, some beans benefit from a longer rest time whereas others can be brewed a few days later... Please add your opinions to the list below and you can specify the roast depth too if you prefer:

    Monsoon Malabar - roasted to first snap of SC - 14 days rest recommended
    Ethiopia Sidamo Guji - roasted to SC but before RSC - ordinary early, 10 days rest good
    Yemen Bani Ismail - roasted to RSC - good from 4 days rest

    What beans would be pretty good to go a day or 2 after roasting (if any)?

  2. #2
    Sleep is overrated Thundergod's Avatar
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    Re: Bean varieties and optimum rest times?

    PNG Kimel - roasted to first snap of SC - 7 days rest recommended.
    Acceptable taste to me after 3 to 4 days - better between 7 -14.

  3. #3
    Senior Member GregWormald's Avatar
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    Re: Bean varieties and optimum rest times?

    I just nailed a roast for some of the Aceh Arabica--to first snaps of 2nd, let run with no added heat for another 20 sec.

    Tasting great just 2 days later--chocolate and blackberry.

    PNG Wahgi--roasted as above. Bland up to day 5, then really nice, now on day 12 and losing fruit.

    Greg

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    Mal Dimal's Avatar
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    Re: Bean varieties and optimum rest times?

    To be quite honest NTE,

    I dont think there is any such bean variety that will meet your criteria. There are far too many variables that will affect the point at which roasted beans will reach their peak flavour, the least of which is probably the origin of the bean itself. The manner in which they have been roasted will have a far greater impact on this...

    Cheers,
    Mal.

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    Re: Bean varieties and optimum rest times?

    Im aware of the differences that different roast profiles will have on the taste of the bean, but just to simplify things, I was trying to get an idea of what to roughly expect from different bean varieties. Because my BM is small, my roast batches are also small and they usually last a bit more than a week so I dont have enough in a batch to try it everyday from a days rest to 2 weeks. So the best I can do is if someone reckons that a 10 day rest is best for a particular bean, Ill try at 7 days onwards as opposed to one which is good 4 days on in which case Ill try them as early as day 2.
    Oh, that and Im running out of beans and my last roast done only a few days ago was of the Sidamo Guji which was recommended at 10 days and so I really dont want to touch that one. Instead, Id like to roast one later today or early tomorrow morning that can be drunk almost immediately.

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    Re: Bean varieties and optimum rest times?

    You can watch the bloom of the grounds of brewed coffee to get an idea of the amount of co2 content. Better to use up to peak than wait too long. Once enough co2 is gone and the o2 takes over evil staling happens pretty fast.
    Ed

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    Re: Bean varieties and optimum rest times?

    Quote Originally Posted by farmroast link=1231551077/0#5 date=1231649327
    You can watch the bloom of the grounds of brewed coffee to get an idea of the amount of co2 content. Better to use up to peak than wait too long. Once enough co2 is gone and the o2 takes over evil staling happens pretty fast.
    Ed
    Can you please elaborate on what to watch for?

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    Senior Member topshot's Avatar
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    Re: Bean varieties and optimum rest times?

    Hi "NTE",

    Its not so much what to "watch for"

    Your nose will tell you ;)

    Warren.

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    Re: Bean varieties and optimum rest times?

    *
    fraid I dont get it either *:-? * What is the "bloom" were watching for? *& *What will "my nose tell me"? *(is there a difference in the smell of CO2 & O2) *

    Seems a shame to use up most of a small batch in trial tastings before its ready *:P

    -Carrie *:)


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    Senior Member topshot's Avatar
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    Re: Bean varieties and optimum rest times?

    Hi CarrieK,

    When the beans start to lose their realy nice smell, they are just starting to get a little stale.

    Warren.

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    Re: Bean varieties and optimum rest times?

    Sumatra Blue Lintong - Popper roasted just into 2nd crack, good from 4 days and Ive a feeling that it will improve for a while *:)
    Brazil Cerado - not from the bean bay - roasted as above also good from day 4, in fact excellent.

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    Re: Bean varieties and optimum rest times?

    Please keep up the info, Im interested in NTEs original question as well, and perhaps would like to be redirected to more info that Mal has hinted at about roast profiles affecting when roast consumption might be optimal?

    Im afraid that none of my roasts have ever reached 14 days... consumed before then!

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    Senior Member askthecoffeeguy's Avatar
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    Re: Bean varieties and optimum rest times?

    Try resting the beans (weather permitting) in an open container for a couple of hours before packaging them

    If I roast at night and its cool over night I often leave the beans out and pack them in the morning

    I find that this helps with early drinking, say 4 days post roast, but that they do tend to get better with a bit of age, say 7 to 10 days post roast, depending upon the bean

    Cheers, Pat


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    Re: Bean varieties and optimum rest times?

    The "Bloom" would be a frothy foam on top of the grounds as the water hits it. This phenomenon is very obvious in a manual pourover or a press, but also in a vac-pot.

    Heres a shot in a Melitta Pourover. Notice the CO2 bubbles as the hot water hits the grounds:


    So what farmroast is suggesting is that once the coffee has "suffeciently degassed" the bloom will be negligable. Ill add that a few days after that and the coffee is staling fast.

    I try most coffees after 2 days rest (except, maybe Sumatra or Yemen), and keep trying them, which is why I like a little larger batch size.

    CHAD

  15. #15
    Senior Member askthecoffeeguy's Avatar
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    Re: Bean varieties and optimum rest times?

    nice photo chad thanks for the heads-up

    pat

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    Re: Bean varieties and optimum rest times?

    Apologies for asking something stupid .. * :-?

    But during the time that the beans are emitting CO2, how are they meant to be stored throughout the 2-4 days? Out in the open or in a sealed container (Im on the basis that it ... err wouldnt explode).


    *edit* - HEH! I found the post with the poll on the question I asked. Funny that. I had a laugh ;D

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    Re: Bean varieties and optimum rest times?

    Behmor Coffee Roaster
    Sealed or non-sealed Valve bags are the go



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