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Thread: Roasting for Plunger only

  1. #1
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    Roasting for Plunger only

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I need to roast a couple of lots (by family request) over the next litle while for plunger users.

    I have had a good search around here for info on Roasting for Plunger about all I can find is a slightly lighter roast is best and maybe a Sweeter Bean. All this was vague at best.

    Any thoughts on how far past first crack or a colour to look for or temperature profile would be apprieciated. Also are S/O or Blends better and a bean style would be a great help.

  2. #2
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    Re: Roasting for Plunger only

    Ill defer to the experience of others as I drink mainly espresso-based drinks (step up Mal ;)) but I believe steeping methods such as plunger dont tend to bring out as many of the oils / flavours of the coffee as the espresso process. As such a bean that has more varietal characteristics inherent and then preserved by a lighter roast will taste quite pleasant where it may be overpoweringly acidic through an espresso process - which I think is why low acid roasts (often darker roasts) are often recommended for espresso where in a plunger it may taste a bit flat.

    I would encourage a bit of experimentation if you can... I cant see what youre using to roast, but if its a large batch corretto try pulling about 50g or so of beans out a few minutes after FC, and then do the same every minute after that until you want to stop the roast. Keeping them all separate, grind em up, steep and cup - thatll give you a fair idea of how they taste at different roast points and what you need to be aiming for.

    As for bean type, SOs are always easiest to start with in the experimental stage, but try a bit of blending if you find youve got the right roast level in a particular bean but its lacking a bit of something.

    Good luck!
    Greg

  3. #3
    Mal Dimal's Avatar
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    Re: Roasting for Plunger only

    Quote Originally Posted by Greg Pullman link=1220411440/0#1 date=1220413007
    Ill defer to the experience of others as I drink mainly espresso-based drinks (step up Mal ;))
    Dont know about that so much Greg :-[ ....

    Hiya bean....
    Well, for us, I usually keep the roast batch pretty simple.... no complex blending as such. If you have some of the PNG Wahgi, that on its own makes for a very nice Plunger brew. If you think its a little bright then you could add a proportion of one of the softer South American beans from Brazil, Colombia or Bolivia or maybe even a Peruvian bean (I enjoy these on their own too).

    As far as roast profiles go, I normally roast as per normal until Rolling First Crack has finished and then slow the temperature gradient right down to about 2-2.5C/Minute and stop the roast once the beans have reached the neighbourhood of CS8-9 on the Membership Card and before any sign of Second Crack. In fact, if I hear any SC snaps, then Ive gone too far.

    Depending on the bean variety, allow between 3-5 days to rest and then go for it. Mind you, since buying my AeroPress from Dennis and receiving the wonderful gift of a Hario Syphon, I dont drag the Plunger(s) out of the cupboard too much anymore. As Greg says though, experimentation is the only way to find out what your family will really enjoy and his suggestion to grab samples of beans from various stages of the roast is spot-on 8-). All the best mate and have fun... ;D

    Mal.

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    Re: Roasting for Plunger only

    thanks guys, [smiley=thumbsup.gif]

    It just so happens I have 2.5kg of PNG Wahgi on the shelf :) Sounds like I will start with that and see how it goes.

    I am with you on the Syphon my 2 cup S/Steel plunger is in the camping gear and the other ones are at the back of the cupboard. Interesting I really like the espresso type roasts on a Syphon but not in plunger at all.

    I was having stupormarket preground at Mums the other night and got talking about a better brew and the request was made. I told to get the 45 year old hand grinder out as well in readiness ;) or maybe I will be kind and give her my Ibiteral. ::)

  5. #5
    Mal Dimal's Avatar
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    Re: Roasting for Plunger only

    Quote Originally Posted by beanflying link=1220411440/0#3 date=1220429232
    I told to get the 45 year old hand grinder out as well in readiness ;) or maybe I will be kind and give her my Ibiteral. ::)
    What? Not the LC DRM.... ;)

    Mal.

  6. #6
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    Re: Roasting for Plunger only

    Behmor Coffee Roaster
    She only has a very small kitchen so it wouldnt be fair to give her that one ;D



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