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    Green bean - shelf life

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    hello
    I am new to coffee roasting and interested to know how long I can keep green beans before roasting and what is the best way to store green beans.
    I plan to do just small batch roasting at home for personal use.


  2. #2
    Senior Member flynnaus's Avatar
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    Re: Green bean - shelf life

    Welcome
    Depends on how you store it. Stored in the right condition some could last up 3 years or more. They will still lose some quality over that period. Humidity and temperature variation are the biggest enemies so they will be ideally stored in an environment which is of optimum humidity (I think it was about 60% at around a steady 20oC. Some use wine fridges to achieve this.
    I have stockpiled and now finding some beans that I bought in 2010 have lost nearly all their flavour. A humid summer in Sydney seems to have had an effect as I was consuming 2009 beans last year that werent nearly as flat.

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    Senior Member artman's Avatar
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    Re: Green bean - shelf life

    My first batch of green beans was inadvertently stored in various and unkind conditions.* I had trouble with initial roasts and gave up for a 3 or 4 years before coming to my senses, and did not have the knowledge of correct storage requirements etc.

    After this time they still tasted very nice.* Maybe not as good as I roast now, but I was still very impressed with the flavour, so in my experience the storage conditions have fortunately been quite forgiving.*

    I realise this hasnt really answered your questions, but they should still be ok even if you dont have the perfect storage environment.

    Cheers

  4. #4
    Senior Member Yelta's Avatar
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    Re: Green bean - shelf life

    I keep about about 12 months supply of green beans (approx 40kg) in a metal filing cabinet in my shed (dry cool conditions) and rotate my stock, oldest used first, so Im always roasting beans about 12 months old, freshness is not a problem for me at 12 months, cant comment past that point, and quite honestly why would you amass more than 12months supply anyway? :-?
    PS: my storage cupboard is also vermin proof, we live in a grain growing area so mice are always about, I suspect mice would create mayhem in a stash of green beans. ::)

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    Senior Member fivegallon's Avatar
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    Re: Green bean - shelf life

    This thread prompted me to do a check on my green stocks...

    http://www.flickr.com/photos/44864719@N02/7147201699/in/photostream

    I reckon im good for a bit 8-)

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    Re: Green bean - shelf life

    Cant see your pic.....

    "You must be signed in to see this content."

  7. #7
    Senior Member fivegallon's Avatar
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    Re: Green bean - shelf life

    try this:
    http://farm8.staticflickr.com/7037/7147201699_caa7ca58cc.jpg


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    Coffee+carbon=heaven Mono's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 616E716260666B6B6869070 link=1336173704/6#6 date=1336304521
    try this
    ;D ;D ;D
    Would but WAF would be :-/ :-/ :-/ um zero :)

    Steve

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    Re: Green bean - shelf life

    Quote Originally Posted by 6768776466606D6D6E6F010 link=1336173704/6#6 date=1336304521
    try this:
    http://farm8.staticflickr.com/7037/7147201699_caa7ca58cc.jpg
    What would actually be impressive would be a massive stack of empty CS bags. To me, having so many full bags of green beans just seems like a waste, or indicative of the fact that your not roasting enough... :D


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    Senior Member fivegallon's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 080A0E0709071E0E7A4B0 link=1336173704/8#8 date=1336388881
    Quote Originally Posted by 6768776466606D6D6E6F010 link=1336173704/6#6 date=1336304521
    try this:
    http://farm8.staticflickr.com/7037/7147201699_caa7ca58cc.jpg
    What would actually be impressive would be a massive stack of empty CS bags.* To me, having so many full bags of green beans just seems like a waste, or indicative of the fact that your not roasting enough... :D
    or i couldnt be arsed pulling out all the empty bags ;)

    assumptions are the mother of all... u know what

    p.s. both my Hottop and iCoffee roasters get a workout every week

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    Re: Green bean - shelf life

    I bought 10kgs, I hope my beans dont go off before I drink it all. Should last me about a year. I will probably be sick of the beans before I finish them... :( Wish I could buy in smaller quantities. 2.5kgs is a 3 month supply... ::)

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    Senior Member saoye's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 6B64697A696E6467080 link=1336173704/10#10 date=1336473625
    Wish I could buy in smaller quantities. 2.5kgs is a 3 month supply...
    Remember you lose 20% in weight after roast, so your 10kg is more like 8kg of roasted beans. I dont think there is any risk of your grean beans going off before you drink it all given a 3 year shelf life. I doubt 8kg of roasted beans would last you 3 years. When family and friends come over, you find your beans starts to deplete rapidly. ;)

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    Senior Member Bosco_Lever's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 30222C3A26430 link=1336173704/11#11 date=1336498185
    3 year shelf life
    I know there is all sorts of information and statements about green beans lasting three years, on this site. I would be hesitant to state this without extensive analysis. Green beans do deteriorate over time and lose moisture.
    I am finding beans that I purchased in late 2009/2010 becoming rather bland. I would say that stockpiling is totally unnecessary, and to aim for only 6-12 months of "stock" at any time. Besides that, your palate will change and develop over time. You may find that what you enjoy now, may become boring in the future. The variety of beans on the market make the coffee journey so fascinating.

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    Re: Green bean - shelf life

    I agree with Bosco Lever, After 2 months of drinking the same 4 beans Im kind of over them. Its not that they dont taste good anymore, its just that Im looking for a different flavour profile. Ive blended them into every conceivable combination but theres only a couple of blends that work well.

    1kg of the same bean is about my limit before I get bored. Thats still a month of the same bean over and over, or several months if Im switching beans daily or blending.

    I started out liking chocolate notes, now Im onto orange and citrus zest and winey notes. Variety is what makes life interesting and having a huge stockpile of beans I no longer enjoy would just be a waste.* :-? I also want to sample beans from all corners of the earth and having a 6 month supply of mocha java beans gets in the way of that.

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    Senior Member saoye's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 6D626F7C6F6862610E0 link=1336173704/13#13 date=1336521910
    I agree with Bosco Lever, After 2 months of drinking the same 4 beans Im kind of over them. Its not that they dont taste good anymore, its just that Im looking for a different flavour profile.
    If you are bored of the taste already, have you tried roasting to different roast profiles for each?
    I cycle between 8 different beans. I am definitely not bored yet. I only buy 1kg of one at a time and only 2 or 3 kg of the ones that I know is a staple like Columbia, India and Indonesia for me. I also roast for my friends and families on occasions in 500gm batches which helps me cycle my stash. (Makes a good gift). ;)

    Ethiopian
    Kenyan
    Peru
    Brazil
    Columbia
    India
    Indonesia (Arabica)
    Indonesia (Robusta) - ok as a pour over or as a vietnamese drip.
    PNG

    I have about 15kg in the pantry and thats dwindling pretty fast. definitely no where near lasting me 3 years (3 months if Im lucky) so all this fear of reaching 3 years when only 10kg I think there is no fear. Also 3 years is only a guideline same as 3 weeks and 3 minutes but it is a good indication and always depends on how you store it.


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    Re: Green bean - shelf life

    Quote Originally Posted by 5E54415656594D4B380 link=1336173704/1#1 date=1336182383
    Welcome
    Some use wine fridges to achieve this.
    Thats a great idea , think i will give that a go.

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    Senior Member Bosco_Lever's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 252623253223202E22470 link=1336173704/15#15 date=1336599719
    flynn_aus wrote on May 5th, 2012 at 11:46am:
    Welcome
    Some use wine fridges to achieve this.

    Thats a great idea , think i will give that a go
    Just find out the humidity level of the fridge first. What is set for wine is not necessarily perfect for coffee beans. Some wine fridges are set at a very high humidity level, so do your research first.

    It would be nice to hear from a professional roaster, what their take on this is.

  18. #18
    Brenton badbudgie's Avatar
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    Re: Green bean - shelf life

    Will do . I am able to change the settings on my fridges.

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    Re: Green bean - shelf life

    Quote Originally Posted by 23313F2935500 link=1336173704/14#14 date=1336525429
    *I only buy 1kg of one at a time and only 2 or 3 kg of the ones that I know is a staple like Columbia, India and Indonesia for me.*
    My point exactly. Someone roasting for themselves doesnt need 2.5kgs of every bean. A 5kg stash will be more than enough for the next month or two. No need to hoard 20kgs if youre the only consumer. Ive had my beans 2 months and so far have only roasted 2kgs in total. I wish I had 10 different beans to play with instead of just 4.

    Quote Originally Posted by 23313F2935500 link=1336173704/14#14 date=1336525429
    all this fear of reaching 3 years when only 10kg I think there is no fear.
    If my beans arent all gone in 6 months Ill toss them. My point was about getting bored with the flavour of beans and its better to have a smaller stash so you can cycle the beans quickly and try something new.

    Good for you that you have people to gift your beans to. Not everyone does. The only person consuming my beans is me and it takes a long time to personally consume 8kgs of roasted when you only drink 2 shots a day.

    Yes Ive roasted to different levels but theres a very small margin of roasting in which I enjoy these beans. I recently tossed 800gms of roasted because the roast level didnt do the beans justice. :(

    I guess where Im coming from is that it probably is better for people new to it to only invest in a small stash of beans and replace it often until the know which beans they like and which ones they dont. You can always buy more of what you like, or find good substitutes if they are out of season.

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    Senior Member saoye's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 5A55584B585F5556390 link=1336173704/18#18 date=1336610843
    If my beans arent all gone in 6 months Ill toss them. My point was about getting bored with the flavour of beans and its better to have a smaller stash so you can cycle the beans quickly and try something new.

    Good for you that you have people to gift your beans to. Not everyone does. The only person consuming my beans is me and it takes a long time to personally consume 8kgs of roasted when you only drink 2 shots a day.
    Hi Claraflo,

    Dont toss them out! Put them on the "Pay it forward" section.* Give me a heads up before you do so I can pounce on them* ;)

    I am sure you have people/friends who drink coffee...just ask around.* I was going to toss some roasts that was utterly terrible, had to re-roast due to power failure and the result in the cup was grassy and sour.* After a week of de-gassing it was slightly better but I could not swallow it.* My bro in law is Italian but drinks stale ground coffee in a perculator and said hed take it.* I ground this failed roast for him and he tells me it is better than any of his previous stale roasted ground coffee that he uses.* The problem is our standards is so much higher now that we forget where we were before.* Others who drink 6 month old stale ground coffee will gladly take your home roasts and thank you for it!

    Im hoping you are in SA so that I can grab your 6 month old green beans* *:)

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    Senior Member GregWormald's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 030C011201060C0F600 link=1336173704/18#18 date=1336610843
    Someone roasting for themselves doesnt need 2.5kgs of every bean. A 5kg stash will be more than enough for the next month or two. No need to hoard 20kgs if youre the only consumer. Ive had my beans 2 months and so far have only roasted 2kgs in total. I wish I had 10 different beans to play with instead of just 4.
    So...Since green beans, given good storage, with keep for 3 years or so (*not 6 months*--Im still getting great coffee from 2009 beans) buy 10 different beans, and rotate them.

    When you run out of one, buy more.

    Greg

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    Senior Member Yelta's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 16233436063E233C303D35510 link=1336173704/20#20 date=1336643848
    Quote Originally Posted by 030C011201060C0F600 link=1336173704/18#18 date=1336610843
    Someone roasting for themselves doesnt need 2.5kgs of every bean. A 5kg stash will be more than enough for the next month or two. No need to hoard 20kgs if youre the only consumer. Ive had my beans 2 months and so far have only roasted 2kgs in total. I wish I had 10 different beans to play with instead of just 4.
    So...Since green beans, given good storage, with keep for 3 years or so (*not 6 months*--Im still getting great coffee from 2009 beans) buy 10 different beans, and rotate them.

    When you run out of one, buy more.

    Greg
    Cant dispute Gregs logic here. ;)

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    Senior Member DavidW1960's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 003522201028352A262B23470 link=1336173704/20#20 date=1336643848
    So...Since green beans, given good storage, with keep for 3 years or so (*not 6 months*--Im still getting great coffee from 2009 beans) buy 10 different beans, and rotate them.When you run out of one, buy more.
    This is exactly my plan - I have 10 different beans all from coffee snobs @ 2.5kg minimum buy - yet I can store them properly and cycle through them. When I run out I will buy more - or if the monthly special grabs me Ill get some then too - (yes Panamanian beans I am thinking of you)

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    Re: Green bean - shelf life

    I think at this point the longest anything has stayed in my pantry without being roasted is four months.

    Shelf life and pests:

    I have just poisoned my last rat (or mouse?) and it is rotting above my bedroom ceiling as I type. Grrrr... I didnt have any trouble with them getting into the beans. Do mice go for green beans? They didnt get that far before I poisoned them all this time, but Im worried they might try...

    Has anybody had any pest problems with green beans?

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    Re: Green bean - shelf life

    Although I cant find it, Im sure I read somewhere (think it was the Kenneth Davids book) that almost nothing eats green coffee beans. We have rats and mice here and they will chew through cardboard and even plastic boxes to get to stuff. Ive had green coffee in both and not had a problem.

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    Senior Member fatboy_1999's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 5C6978693F350C0 link=1336173704/24#24 date=1336856979
    Although I cant find it, Im sure I read somewhere (think it was the Kenneth Davids book) that almost nothing eats green coffee beans. We have rats and mice here and they will chew through cardboard and even plastic boxes to get to stuff. Ive had green coffee in both and not had a problem.
    Well, they might not eat the actual beans, but they will eat through whatever you have them in, make a hole, cause them to spill out and scurry all over them (causing you to go Ewww and throw them out). So regardless of whether they will or wont eat them, I think storing them in sturdy places is a good idea. I also have poison down in a couple of places. Must remember not to roast the poison!

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    Re: Green bean - shelf life

    I was going to pick up some more varieties of greens this month but think Ill give it a miss. Its a pain for me to find storage space for them. I live in the worlds tiniest apartment. I had my current coffee snobs stash still in box under the couch but have since discovered that the damp in this apartment building is causing mould and I cant store them there. My Gambella smells particularly musty when roasting although they look ok. But still its not a smell I ever got from them before. :(

    I now have the box sitting in the middle of the living room and being a clean freak. It causes me tension everytime I see that box sitting there. Not to mention I dont really like the idea of my cats snoozing on them and imparting fur, because they like boxes and new stuff to sit on. >:(

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    Re: Green bean - shelf life

    Quote Originally Posted by 2D2A3F292432147A7272724B0 link=1336173704/25#25 date=1336866777
    Well, they might not eat the actual beans, but they will eat through whatever you have them in
    Not from my experience. They only seem to chew through boxes that have nice stuff to eat (according to their tastes) in them. Like I said, I have stored (and am currently storing) greens in both plastic and cardboard boxes where I know rats have gotten into other edible stuff and have never had a problem.

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    Senior Member fatboy_1999's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 15203120767C450 link=1336173704/27#27 date=1336879498
    Not from my experience. They only seem to chew through boxes that have nice stuff to eat (according to their tastes) in them. Like I said, I have stored (and am currently storing) greens in both plastic and cardboard boxes where I know rats have gotten into other edible stuff and have never had a problem.
    Well, when I say they will eat through, I mean if you just leave the bags on shelves for example.
    When I first moved my stash outside (shed) several years ago I was (naively) just storing the beans on shelves in either the bags they came in or re-using empty 5kg bags for Basmati rice. There were a couple of bags that got nibbled open and the beans spilled out. I was then not willing to use any of them and it prompted me to get the large plastic tubs (with lids) that I use to this day.
    I also put down poison and hopefully keep their visits to a minimum now, but with the tubs, I have had no issues with vermin. Our humidity is such that I have not seen any adverse effects from storing in the tubs either.

  30. #30
    Senior Member bennett's Avatar
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    Re: Green bean - shelf life

    I dont roast much, but 6 months ago I bought 2.5kg of Peru from Andy to have a play with a popper. I gave 1kg to my brother in a plastic freezer bag. I kept my stash in the coffeesnobs cloth bag it came in inside my linen cupboard in a cool dry place.

    6 months later, the two lots of beans look completely different. Mine has gone a whitish colour. His is quite green still. Coz were only dabbling occasionally with our poppers I cant ascertain if the appearance actually translates to a difference in taste or freshness, but they definitely look different. Just an observation.

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    Re: Green bean - shelf life

    Hi all,

    I was wondering if I was to cryovac my green beans would that be sufficient to lock in the moisture and flavours? Also, as long as it was kept out of direct sunlight would I still be at risk of developing mould? Or sweating?

    I think my stock will be well over 6 month supply but will give me 5 different varieties, and living in an alpine region have fluctuating ambient temperatures and humidity, inside and out

    Regards
    Ivan


    PS I would like to thank everyone on this forum for their honest and open sharing of information... Even though it has lead me to buy a Bezzera BZ99, compak K3, and now a popper:) and have already committed to 14kg stock of green beans, and will probably build a KKTO;)

  32. #32
    Senior Member Koffee_Kosmo's Avatar
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    Re: Green bean - shelf life

    Quote Originally Posted by 756F62676A716C6D030 link=1336173704/30#30 date=1337765458


    PS I would like to thank everyone on this forum for their honest and open sharing of information... Even though it has lead me to buy a Bezzera BZ99, compak K3, and now a popper:) and have already committed to 14kg stock of green beans, and will probably build a KKTO;)
    I am always arround to assist a fellow KKTO roaster builder
    KK
    GreenBeanGenii likes this.

  33. #33
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    Re: Green bean - shelf life

    Quote Originally Posted by 233934313C273A3B550 link=1336173704/30#30 date=1337765458
    Hi all,

    I was wondering if I was to cryovac my green beans would that be sufficient to lock in the moisture and flavours? Also, as long as it was kept out of direct sunlight would I still be at risk of developing mould? Or sweating?

    I think my stock will be well over 6 month supply but will give me 5 different varieties, and living in an alpine region have fluctuating ambient temperatures and humidity, inside and out

    Regards
    Ivan


    PS I would like to thank everyone on this forum for their honest and open sharing of information... Even though it has lead me to buy a Bezzera BZ99, compak K3, and now a popper:) and have already committed to 14kg stock of green beans, and will probably build a KKTO;)
    I have used a Foodsaver and Mason jars to vacuum seal all my greens. This seems to protect them, and preserve them.

    I have several beans from two years ago, and they still roast up very nicely. I learned to buy in smaller quantities. I usually roast 855g each week.

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    Re: Green bean - shelf life

    Quote Originally Posted by 795D545457576D795D415F5D320 link=1336173704/31#31 date=1337774510
    Quote Originally Posted by 756F62676A716C6D030 link=1336173704/30#30 date=1337765458


    PS I would like to thank everyone on this forum for their honest and open sharing of information... Even though it has lead me to buy a Bezzera BZ99, compak K3, and now a popper:) and have already committed to 14kg stock of green beans, and will probably build a KKTO;)
    I am always arround to assist a fellow KKTO roaster builder
    KK
    Cheers KK - big chance i will take you up on your offer:)

    Quote Originally Posted by 4055405D4148320 link=1336173704/32#32 date=1337784577
    I have used a Foodsaver and Mason jars to vacuum seal all my greens. This seems to protect them, and preserve them.

    I have several beans from two years ago, and they still roast up very nicely. I learned to buy in smaller quantities. I usually roast 855g each week.
    rgrosz78 Thanks for the feedback -
    I am more confident to trial cryovac bags for some of my green beans, to try and make sure I dont have them all exposed to cahnges in the weather (heavy rain and snow). They will be stored indoors so will compare after the high risk season.

    Regards
    Ivan


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    Re: Green bean - shelf life

    I mean compare the cryovac bagged beans to the cotton bagged beans:)

  36. #36
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    Re: Green bean - shelf life

    Quote Originally Posted by 6D777A7F726974751B0 link=1336173704/34#34 date=1337863642
    I mean compare the cryovac bagged beans to the cotton bagged beans:)
    I expect the cryovac beans will give MUCH better results for anything stored more than 6 months.

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    Re: Green bean - shelf life

    Since I happen to have a wine fridge which is kept at a steady 16 degrees and moderate humidity, would that be the ideal place to keep the green beans?

  38. #38
    Junior Member Hawko777's Avatar
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    Re: Green bean - shelf life

    Hi Everyone
    Im a newbie and love my coffee. I currently have a Rancilio Silvia and rocky grinder but am going to upgrade to a Giotto Premium Plus. I love getting to the grass roots of making things and coffee is next on my list. There is so much info you guys have shared and I would like to know if I was to buy a Coffee Roaster, which would be the best one to buy for home? We go through about 500gm per week just between my wife and I, then there is family and friends. Money isnt a problem but nothing too complicated is preferred. Any info about use, beans, machine brands etc would be greatly appreciated.

    Thanks :)

  39. #39
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    Re: Green bean - shelf life

    The Behmor is a pretty simple roaster - some would say TOO simple. You start it up, and watch the beans - then you decide when they are done, and manually stop the roast.

    Ive had my Behmor for 2 years, and Im thinking of getting something with a bit more control. Maybe a HotTop - I know that is heresy in Australia!

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    I work at an Aussie coffee farm and mill and for me there is nothing better than tasting the bean utterly fresh off the tree. You have to struggle with volitile flavonoids and instability of roasts and grassiness, but those fresh distinctive and powerful organic notes are beyond compare. It's like climbing a mountain the hard way but getting there at sunrise instead of midday. Midday coffee arrives between 6weeks and four months after harvesting. This can be extended a couple of months or more if the coffee has been stored the whole while in parchment. Origin of coffee may determine shelf life somewhat depending on whether its best qualities reside in the organic or inorganic acids in the bean. Higher altitude coffee seem to rely more on organic acids which tend to last longer because of their higher complexity, although there are variety considerations as well.

    Coffee is like wood and deteriorates as soon as it is severed from the tree. I also do woodwork, and what happens to coffee when stored is similar to happens as wood seasons. After about two years oils will have hardened and cured after ejecting most of its organic components. Inorganic elements will remain that can still produce flavour, especially phosphors. But the organically equivalent elements will have vanished and these are very important to distinctive and subtle notes nth at said we had a professional cupping some weeks ago of coffees from across the region. One person had some aged coffe. The 2009 and 2010 were terrible but the 2006 was interesting. It was very different from any other coffee. I think what happens at this stage a that harsh lignins have vanished and the bean has absorbed elements from the atmosphere overtime which gave it it's somewhat delicate nuance. It interested me very much as people did used to age coffee seven years a long time ago somewhere I can't remember. Vacuum packing green coffee removes oxygen from a living bean so I've never trusted it. We have aged sample bean at the factory which is bright very pale straw colour, despite being vacuum sealed for ten years! I must roast it! Don't ask me what the hydrogen has been doing all those years to alter the bean so drastically with no environmental exchanges going on, otherwise I'll start going on about quantum physics!

    So optimal is 6 weeks in my books, with nice stuff going on for another couple of months, after that you can start rolling a bit further each week not second crack because those organic acids are saying bye bye and light roasts begin to taste like crushed up fish bones.

  41. #41
    Junior Member bernardrooney's Avatar
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    I meant rolling INTO second crack last paragraph. Sorry for other typos. On iphone.

  42. #42
    Junior Member bernardrooney's Avatar
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    Forgot to say that coffe doesn't so much deteriorate as changes state. Given enough time coffee would petrify into stone if its environment is stone. So aging coffee in calico or hession will give it those characteristics. Hard to say what container would be best, maybe argon, but that would be a hard build. Probably pure gold is the best way to go

  43. #43
    Senior Member chokkidog's Avatar
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    From your post #40 above........"the organic or inorganic acids in the bean"
    Interesting......can you give examples of the inorganic acids? ( I've had a bit of a look but I can't find anything definitive and it would help shorten my search time )

    And what do you mean here....."Vacuum packing green coffee removes oxygen from a living bean"?

    You say "Hard to say what container would be best, maybe argon".
    If argon is one of the noble gases why/how is it the best 'container' for beans?
    It might be inert but it's a gas; what do you mean exactly?

    And again here....."Given enough time coffee would petrify into stone if its environment is stone."
    Are you saying that if you simply stored the beans in a stone jar they would petrify?

    It's a fact that the internet is a source of misinformation.............
    Vinitasse likes this.

  44. #44
    Junior Member bernardrooney's Avatar
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    Sorry I play with words a bit to stir the pot. Acids are just reactive chemicals because the hydrogen is less bound up. Inorganic acids that tell in coffee are generally the phosphoric ones but aren't as prevalent or reactive as the organic phosphor acids in coffee. Soft drinks for instance have phospheriic acid added to increase the 'taste' experience. I'll try and find the article, when I get the chance, that discusses a study on this. They basically chemically tested the green bean as is, then reduced it to ash, destroying all the organic chemicals and leaving the hardier elements. Alternatively, we are still awaiting chemical analysis spectral graphs of GB composition of local coffee. It is confirmed that Northern NSW coffee is 10-20 percent lower caffeine.

    Yes, argon is a gas that is impossible to pack anything in. It is the most stable atom known.

    A coffee bean would have to fall in sediment and be compacted at high pressure over many millions of years to petrify.

    David Peasley, a noted Australian agronomist, and who has done more for coffee growing in that field than any other person I know of, shared with me his opinion about starving living bean of oxygen in vacuum packing. I share his feeling that its most probably deleterious.
    smokey likes this.

  45. #45
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    Hi,

    All green coffee beans should be kept cool and dry at room temperature, and away from direct sunlight. The refrigerator is too moist for green beans and the freezer is too dry. The flavor of green beans is fairly stable when stored in a cool, dry place. Green coffee will not have a drop in cup quality from about 6 months up to 1 year.

    cheers.
    matth3wh likes this.

  46. #46
    Mal Dimal's Avatar
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    Another plagiarist, or the same one under a different name...
    Start at the 2nd paragraph down in the Sweet Maria's link.
    https://legacy.sweetmarias.com/libra...ffee-storage-0

    Mal.

  47. #47
    Senior Member Stan's Avatar
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    I keep my beans in the bag they come in. I keep them on the tiled floor of my pantry. I have stored them like this in Cairns for and now live north of Brisbane. I have have not had any issues that affect the flavour. However I tend to use my beans within a year of purchase, as there is no problem in getting new beans from Bean Bayor other sources. If you are concerned then buy smaller amounts to ensure they are used within 12 months.

  48. #48
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    I wonder if Andy, or someone else, can say how old beanbay beans are?

    His offers change regularly, so I'm guessing they are seasonal.

  49. #49
    Senior Member trentski's Avatar
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    Zombie thread has come back to life

  50. #50
    Senior Member shapeshifter's Avatar
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    Behmor Coffee Roaster
    Quote Originally Posted by trentski View Post
    Zombie thread has come back to life
    Why not, always good to hash out old stuff.

    If you were asking me I'd ask you if you want a coffee giggled like a schoolgirl I can't guarantee that it'll be okay though. Results are a mixed bag when your green beans are 5 years old. Most aren't too bad, still beat the pants off a lot of cafe coffee.

    Oh and I'm going to nut the person who stole my beans out of BeanBay! I was just about to order them tonight and bam they are gone!!!
    Dimal and Stan like this.



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