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Thread: How do you store your roasted beans and the effect on optimum consumption time

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    How do you store your roasted beans and the effect on optimum consumption time

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

    as a bit of a follow up from this thread http://coffeesnobs.com.au/YaBB.pl?num=1231551077 I thought it was worth running this poll and a bit of discussion on the relative merits of fully sealed, partially sealed or unsealed storage of roasted beans.

    Main reason for this is that I purchased an impulse sealer a few months ago for my shop/coffee use and I feel that my beans are now taking longer to reach there optimum now I am sealing the bags rather than by just closing the ziplocks.

    Prior to impulse sealing I used to get a small puff in the bag while I now get full blown pillows *8-) Is the trapped level of CO2 in the bags retarding the maturation (and the oxidization) of the beans or has my pallette changed?

    If you are short on roasted beans is it worth leaving the bags not heat sealed?

    Also interested to know if any of you are not using Valved bags?


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Ive noticed the same.

    Recently I found an impulse sealed bag with a faulty one way valve.
    The beans definitely seemed less matured.

    I bought a bag of roasted beans last week that I prefer at 7 days post roast. They had only been roasted the day before so I asked for the bag not to be heat sealed, figuring they should be ready sooner.

    I usually roast 500g lots and decide on whether or not to heat seal both 250g bags depending on projected use.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I use ziplock vavle bags and seal them, but I also have vacuum canisters. I havent found a huge difference in the flavour of the coffee from ziplock to container, only its easier to tell when the beans have degassed with the ziplock bags. I have found optimum consumption time depends on bean type and roast level sometimes 3 days sometimes 7 days post roast

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I have an impulse sealer but really only use this for when i "give" coffee to other people.
    I find at home that a roast of 500gm lasts about a week and try and space my roasts to suit but of late will be looking to construct a smaller roaster to accomodate small batches of 200 so that the variety will potentially be greater and will use the impulse sealer more often to ensure that the beans will take longer to degas etc.

    Mal

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    We consume about 650g (roasted) in a week or there-abouts so always have one bag unsealed and zip-locked being consumed while another is sitting in a dark, cool spot in the back of the cupboard. Usually roast a new batch on the day the sealed bag is cracked and so the process goes on.

    The first couple of cups from the new bag reveal that the beans are inevitably "under-done" but by the next day the flavour literally explodes on the palate and pretty well stays that way for the rest of the week. Some beans of course, get better and better as time goes on which really makes it very interesting when getting ready for the first brew of the day.... 8-)

    Mal.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Ziplock bags with Valves is what I do & use but if I had a heat sealer I would do that also
    I always forget to visit a kitchen shop when I am out (dragged along shopping) ::)

    Quote Originally Posted by 7E53575B563A0 link=1234837789/4#4 date=1234875491
    Some beans of course, get better and better as time goes on
    What Mal said about beans getting better as time goes that happens to me with the Mandheling beans

    Quote Originally Posted by 585556583A0 link=1234837789/3#3 date=1234869282
    will be looking to construct a smaller roaster to accomodate small batches of 200
    Bolb you need to build a hybrid TO roaster like mine

    KK

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 3C3B3F303832273730395E0 link=1234837789/0#0 date=1234837789
    If you are short on roasted beans is it worth leaving the bags not heat sealed?
    I use "Ziplock bags with Valves" and dont seal them as most everything I bring home from the Snobbery I want to age faster than normal and use well inside a fortnight anyway.

    Storing roasted is not what I ever need to do.

    If I had to guess from my previous experiments, the ziplocks would leak 50% of CO2 and heat sealing them is the best if you are trying to keep beans for longer... and ergo, they will take longer to "peak".


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Hi KK
    Your TO roaster design is set as a favourite at the moment and i just need to finish a few things round the house before i start the project.
    I am aiming for a March build of a new roaster.

    Mal

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 42666F6F6C6C5642667A6466090 link=1234837789/5#5 date=1234877603
    I always forget to visit a kitchen shop when I am out
    You can find them online.
    I wouldnt trust the availability of spare parts for a sealer bought from a homewares store.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I got my 300mm impulse sealer from through Ferralbay from an internet store out of Sydney. Standard of finish on the metal is a little ordinary but it works as well as the $200+ ones :)

    Apart from that thanks for the thoughts on sealed or unsealed bags too. So maybe as a rule of thumb 30% ??? less time (or less storage time) needed to arrive at peak if you dont seal them?

    Maybe left in an open bowl will be even quicker :o

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    What about these hand held units
    Thats what I like





    KK

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Hi KK,

    I think they wont get to a high temp for the foil bags. I am sealing poly tube in the shop and need to wind the timer up on mine to do coffee bags. Nice thing is the little battery units are cheap.


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 5C7871717272485C78647A78170 link=1234837789/10#10 date=1234922716
    What about these hand held units
    I have one and its a chore to seal a freezer bag let alone anything thicker.

    The one I have is very similar to bfs.
    They seem to be fairly generic and sold under different brands.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I have a floor mounted one on a stand with a pedal mechanism, also from ferralbay and less than $200. The finish is OK and it will seal a 1KG bag but i need to turn the heat right up and do the 1KG bag twice on the same spot each time

    When using bags with ziplocks i only need to seal them once as there is only two layers of the bag.

    Mal

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    The (only) vote for Vacuum Storage Container is mine. :-X

    Is there any problem to use this system?

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 6D766D6C020 link=1234837789/14#14 date=1236269708
    The (only) vote for Vacuum Storage Container is mine.

    Is there any problem to use this system?
    Vacuum storage containers suck!!!

    I mean they suck all the goodness out if the beans :(

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 28332829470 link=1234837789/14#14 date=1236269708
    Is there any problem to use this system?
    Gday Oton,

    Well, the theory is that as the pressure inside the storage container is reduced, various volatile oils will begin to "boil off" at their particular boiling point, as determined by the lower pressure. I guess the more you reduce the pressure, the more of these oils will be boiled off and removed by the gas evacuation pump into the free atmosphere.

    This is only theory mind you, but it seems reasonable to me until such time as someone with access to the appropriate laboratory equipment can prove it one way or the other.... :)

    Cheers,
    Mal.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I will share what little I know and have gathered on the subject. Once beans are roasted the clock begins to tick. There are chemical changes that go on in the bean. One of those is oxidation, so some have come up with the theory that if you remove the oxygen or displace it with a gas such as nitrogen, that this will stop the staling process.

    Anyone who has used canned Illy beans (which are packed under nitrogen pressure) will know that right after opening they taste quite good, but after one or two days they taste months old. The changes in the bean that age them have been going on in the nitrogen atmosphere, but without the oxygen they cant finish. Once exposed to oxygen the beans are hungry for it and take it in with a great appetite. Vacuum packing will set the beans up for a marinating in oxygen. The beans internals are emptied to some extent by the partial vacuum, and when the can is opened and the air is reintroduced, the beans suck it right back in and soon are as stale as if they were never "preserved" in that way. Three days after opening they taste like they are months old because they probably are.

    The only test that I have read that was carried out in a controlled and scientific manner (or at least close to that) showed that the only way to slow the staling process is by deep freezing the beans. The freezer section in a fridge is not cold enough, and I wish I could remember the effective temperature, but I cant.

    I would state that the only way to insure that coffee is as fresh as possible is to only get coffee that is no more than about three days out of the roaster, and to use that coffee before it is an additional ten days old... more or less. SO many factors affect that length of time (roast level, method of brewing, personal taste, blend, etc.) that there is no one time frame that is universal.

    Another theory centers around the one-way valve bags. These do noting to keep beans fresh. The only purpose thy have that I can see is that they keep bags of freshly roasted beans from popping, caused by the pressure in a sealed bag from the degassing of the beans.

    I once sent about two pounds of freshly-roasted coffee to my brother. I had four 1/2 pound batches and vacuum sealed them completely in the seal a meal bags. he said that when the box arrived at his home is was no longer a cube but looked like a basketball from being inflated by the bags which had fully expanded and were on the verge of bursting the box, some of its seams having already separated.

    There are plenty of companies selling pods which are reportedly ground and/or packed in a nitrogen environment and air-tight sealed in foil packets, and all sorts of other methods to keep them fresh, but your taste buds will tell you that it is not all that effective.

    If coffee in a jar kept in the fridge tastes good to you after a month or two, I am jealous because I cant do that. I have tasted some really foul, stale coffee in the past and it is a taste-memory I wish not to repeat, ever again.

    I will add this, which is IMO- Coffee that tastes the same after a month as it did when you got it probably was stale, blended from cheap beans, or over-roasted when fresh (or all three) and had little to lose to begin with....

    If you dont home roast, frequent a local artisan roaster if possible. Lifes too short to drink bad coffee.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 31020D071A3C244D630 link=1234837789/17#17 date=1236323978
    Another theory centers around the one-way valve bags. These do noting to keep beans fresh. The only purpose thy have that I can see is that they keep bags of freshly roasted beans from popping, caused by the pressure in a sealed bag from the degassing of the beans.
    What would be the point of sealing the bags then?
    If you didnt want the bag pop just stick a hole in it too small for a bean to get through.
    You said in your first paragraph that oxidation begins once beans are roasted. Yet you said in the quoted paragraph that the one-way valves (which keep out oxygen) do nothing.
    Thats contradictory.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 6854495258594E5B53583C0 link=1234837789/18#18 date=1236335216
    What would be the point of sealing the bags then?
    If you didnt want the bag pop just stick a hole in it too small for a bean to get through.
    You said in your first paragraph that oxidation begins once beans are roasted. Yet you said in the quoted paragraph that the one-way valves (which keep out oxygen) do nothing.
    Thats contradictory.
    Yes, it sounds that way. But it seems to me that since the coffee was sitting for some time after roasting and then was placed in the bags with the ambient oxygen that was in the atmosphere, then the valve is keeping out what was already in there. While the CO2 released from the beans will displace some of the oxygen that was in the bag, the clock is still ticking on the beans. IMO, you could get much the same effect of a 3-way valve by poking a hole in the bag with a straight pin. The gas pressure from the beans would be released and it would be difficult for any air to get back in.

    And even if we hypothesize that it is possible to pack the beans so that they were never exposed to oxygen once removed from the roaster, those bags do not stop or even slow the chemical reactions that take place. There are elements that are formed or changed that need ("want") oxygen and as soon as the bag is opened, in a very short time (lets say about one day, and no more than maybe two) the coffee will taste as if it were left in an open bag. Try it with a can of Illy. I am not the only one to experience that accelerated staling once a can of Illy had been opened.

    Once the bag is home and you open it, the one-way valve becomes unnecessary, and is akin to sealing all the doors and windows in your home to save energy and leaving the flue open in the fireplace.

    As I stated, if any given method of storage works for you, and you cant taste the difference, then by all means continue to use it. I keep my home roast around for about 7 to 10 days depending on my drinking habits at the time. The coffee stays in a lidded mason jar in a dark, cool cabinet. Although I can taste the coffee losing a bit of its flavor over the last day or two, it still tastes quite good as you would expect an espresso made from coffee of that relatively young age to taste.

    For those who cant or wont home roast and who do not have access to smaller quantities of fresh coffee locally, and have to order larger amounts of coffee than can be consumed in less than about 14-21 days, they have to try something to keep their coffee fresh. As I have said, I only know one method that has been shown to work, proven by folks whose ability to cup coffee I trust and who have no financial interest in the results.

    And the point of sealing the bags? So the beans will not spill out during shipping.. . . .? ::)


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I know the beans are exposed to oxygen before bagging but mine are only re-exposed for a short while each time I make a coffee (3 times a day) and then the bag is ziplocked closed again (before grinding begins) and as much air as possible squeezed out.

    Have you tried putting half a batch in a one-way valved bag and the other half in your mason jar and comparing the taste as they age?

    If you have more than one coffee a day you should be able to alternate between the two batches during each day and compare the taste.

    I drink one coffee at about 7am and my next around 11am; not too far apart to be a reasonable comparison.


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Well,

    Along with a few other CSrs, I made the decision to go with sealing my roasts into 1-Way Valve bags. In my opinion and in accordance with the way we consume our coffee, the coffee brews taste better for longer than if simply zip-locked after bagging. Typically, I roast about 650g per week to ten days and roast a new batch when the seal is broken on the recently roasted batch; meaning that freshly roasted beans sit in the back of the cupboard for between a week and ten days.

    When it comes right down to it, youve got to let your palate be your guide and if you find a way to keep those little taste-buds happy for longer, then that is a good thing... Which ever way you choose to store your freshly roasted coffee. A bit different of course for those who are not home-roasting....

    Mal.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    What -- no votes for "in a bowl"??? :o

    How about in the grinder hopper? (doesnt appear in the list tho... strange :P)

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    i cant get my ziplock bags (with valves) to become airtight. but i definately find the coffee stays fresher in them compared to a tuppaware container.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Hi Blackbean
    You wont get them totally airtight unless you seal the back with a heat sealer as well.
    I dont bother and just use the ziplock and find that i start using beans anywhere from day 3 onwards till about day 8 or so, i am constantly roasting so always have fresh coffee on hand.

    Mal

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Since starting this poll I am sealing around 2/3s of the bags I use so I can roast around busy times in my shop. Unsealed start about 4-5 days (depending on beans) out and the sealed ones after a week as a minimum.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    For shipping durability I use ziplock valve bags with the tear off and use a regular dry iron to completely seal to the tear off. For my home use its just black tin tie lined bags. Usually have 3-5 different at a time. Skims off of roast orders. The beans develop no matter what you do :( and are done in that sense in 8-16days,depending. I find the negative effect of the oxygen really doesnt start til just after that. Was interesting how many of the roasts at the WBC were 14 days old, one of the finalist roast was 24 days.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 0403100F100D031116620 link=1234837789/26#26 date=1240373813
    Was interesting how many of the roasts at the WBC were 14 days old, one of the finalist roast was 24 days.
    This is a good point, please keep in mind however, as I understand it, *that those 14 - 24 day old roasts, were well sealed for that time and only opened up for the competition. *Some of the beans are most likely relatively lightly roasted so benefit from longer resting time before use.
    Similar reasons why many of us will let our beans sit for a week if we can, but we would expect our home roasts to last for a week or so, unlike the 24 day old competition roast, which I would expect could be starting to age faster about 3-4 days after the competition.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 6C5F505A476179103E0 link=1234837789/19#19 date=1236363942
    And even if we hypothesize that it is possible to pack the beans so that they were never exposed to oxygen once removed from the roaster, those bags do not stop or even slow the chemical reactions that take place. There are elements that are formed or changed that need ("want") oxygen and as soon as the bag is opened, in a very short time (lets say about one day, and no more than maybe two) the coffee will taste as if it were left in an open bag.

    I was thinking about this problem... So, guys, what do you think about to storage the coffee into mini jars of, lets say, 20 gr? Something like Nespresso capsules, 1 shot per mini jug. This way the beans are exposed only once to oxygen.






  30. #30
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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Someones already tried it.
    Heat sealed portions into plastic pouches.
    You take a plastic bag and divide it up using a heat sealer or two long strips of plastic, seal the long edge and the two ends, then make little pockets with your heat sealer.
    Fill the pockets then seal the top.
    You are left with little individual pockets of beans.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Great, Ill get onto that as soon as Ive finished ironing my socks!! ;)

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Hi CSrs,
    Thanks Beanflying.
    After reflecting on the storage issue I have found a way to improve my own storage methods.
    Recently I have been storing my freshly roasted beans in recycled disposable laboratory screw capped plastic tubes with a capacity of 60-70mL.
    By tapping the beans down I have been able to fit about 28 grams in a tube. I store these in the dark and open a tube to do 2 coffees (grinding immediately before extraction).
    This storage system efficiently slows the post roast maturation and seems to maintain freshness for an extended time.
    For roasted beans required within a few days of roasting I will need to allow gaseous products of the maturation to escape more readily, to allow the flavours to develop.

    Im sure something like this will have been done before by many, but I am satisfied that this system works well for my habits.

    Kind Regards
    Lindsay

    PS.
    This thread and one other stimulated me to focus on the storage question and my sub optimal previous methods. Thank you all for helping to move me forward to an improved management.



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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Roast then immediately grind with mouth under doser. :o

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I tink I see your problem RZ,
    Youll be needin ta remove the doser and suck.

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 3D2A2B3520212A7E7D7E4F0 link=1234837789/32#32 date=1245629090
    Roast then immediately grind with mouth under doser. *:o
    giggled like a schoolgirl

    Quote Originally Posted by 2326212B3C2E363D2E4F0 link=1234837789/33#33 date=1245668796
    I tink I see your problem RZ,
    Youll be needin ta remove the doser and suck.

    NO Way, the dust gets caught in the back of ya throat and after dry coughing for a while.... Every one thinks ya got Swine flu.


    I ran out and ran a big batch on my new KK TO roaster... Dammed beans hardly got to cool; befor I had a few in the grinder and I was having a flat white... Not the best... But DESPERATE ;)

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Ok i thought i should ask a question. Does anyone use air tight containers to store their beans?

    Looks like most people use zip lock bags with vavles. Is storing in an air tight container alright if you are going to use them within 2 weeks?

    thanks guys.

  37. #37
    Senior Member GregWormald's Avatar
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    Re: How do you store your roasted beans and the effect on optimum consumption time

    The idea behind the ziplock/valved bags is that they allow the very fresh beans to de-gas without exploding the container, and during consumption of the beans the bag can be squeezed to exclude any extra air.

    Neither of these are possible with a rigid air-tight container. Whether that works for you is something you will have to try for yourself. I suggest you bag half and air-tight half and see how the taste compares at the end of two weeks.

    Please let us know the results.

    Greg

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 353A212D35303522540 link=1234837789/35#35 date=1264202417
    Is storing in an air tight container alright if you are going to use them within 2 weeks?
    Maybe yes, maybe no.
    It depends on how many times you open and close the container.

    With a valved bag its not the valve after the initial degassing period, its the fact that you can squeeze the air out and then ziplock it closed.

    With an airtight container you still have space inside the container between the top of the beans and the lid.

    To overcome this you could fill the gap with something. Maybe a bag of rice.

    But valved bags are cheap and if you line them with a freezer bag you can easily reuse them over and over until the ziplock wears out.


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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 675B465D575641545C57330 link=1234837789/37#37 date=1264204684
    But valved bags are cheap and if you line them with a freezer bag you can easily reuse them over and over until the ziplock wears out.
    Any idea where i can get some? :-/

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Coffee parts on the left, great FAST service

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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 232C373B23262334420 link=1234837789/38#38 date=1264206671
    Any idea where i can get some?
    Coffee Snobs maybe?
    Have a look in "Buy Green" under "Other Stuf".

  42. #42
    Senior Member Koffee_Kosmo's Avatar
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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 6B647F736B6E6B7C0A0 link=1234837789/38#38 date=1264206671
    Quote Originally Posted by 675B465D575641545C57330 link=1234837789/37#37 date=1264204684
    But valved bags are cheap and if you line them with a freezer bag you can easily reuse them over and over until the ziplock wears out.
    Any idea where i can get some? :-/
    Quote Originally Posted by 5D597F6666637C6B640A0 link=1234837789/39#39 date=1264208886
    Coffee parts on the left, great FAST service

    Also Bean Bay
    Under the heading "Other Stuff"

    But in NZ you may get some from a local roaster
    PM Redzone (Chris) he may be able to help with a local supply or a CS group order

    KK

  43. #43
    JJJ
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    Re: How do you store your roasted beans and the effect on optimum consumption time

    Quote Originally Posted by 1713352C2C2936212E400 link=1234837789/39#39 date=1264208886
    Coffee parts on the left, great FAST service *
    Incredibly fast service, great prices, too.

    I bought a knock bin (and a few other things from them) recently and theyd shipped them the same day, arriving via courier on my door the next morning.

    As for storing beans, i use valve bags from Andy here and then put them in the better halfs Lock n Lock containers.
    I wouldnt put them in cheap airtight containers but these L&L ones are apparently top of the line.

  44. #44
    Senior Member Luke_G's Avatar
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    Re: How do you store your roasted beans and the effect on optimum consumption time

    I usually use zip lock freezer bags and release the pressure after a couple of days manually.
    If im posting beans to family down south then ill use valved bags as im worried the freezer bags may explode in transit.

    Im curious to know though.... once releasing the pressure the first time and the bag blows up again, is that gas doing any harm as oxygen does or is it simply coffee aromad carbon dioxide and therefor aiding the overall aroma once finally cracked?...anyone?

  45. #45
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    Coffee Bean Storage

    hi all.

    so i was looking around the house for a container to store my coffee beans....and i noticed i have a 1kg Milo tin thats almost empty.

    what are your thoughts on using this as a container to store my coffee beans?

    obviously no light would be able to get in, and it looks pretty airtight to me. ;D


    how do you guys store your beans?

  46. #46
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    Re: Coffee Bean Storage

    I use three things. First is one of those vacuum container with a hand pump (although the seal seems to be buggered). I also have a coffee tin with a silicone top so is fairly air tight, then if there is any left (has to be 1kg or over) I just store it in the bag. I use the bag first then the tin then the vacuum container.

  47. #47
    JJJ
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    Re: Coffee Bean Storage

    Theres a wealth of information and ingenious ideas on bean storage throughout the forum so if you get a chance, take the time to do a search and have a read of some threads.

    You wont regret it. :)

  48. #48
    Senior Member GregWormald's Avatar
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    Re: Coffee Bean Storage

    One-way valve bag squeezed flat, in a dark cupboard.

    The less air the better, and a 1 Kg tin that is 1/2 full of coffee contains a lot of air.

    Greg

  49. #49
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    Best bean storage... CO2 or vacuum?

    So Im wondering which you think will provide the best storage results for roasted coffee beans?

    Is it better for the beans to be stored in a vacuum (no air) or in co2.
    Or are they both achieving the same result (no O2).

    The unrealistic example here is: you open a bag of fresh coffee beans. Do you vacuum seal it (with a really good vacuum sealer that removes all air), or fill it with CO2 then seal it?

  50. #50
    Sleep is overrated Thundergod's Avatar
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    Re: Best bean storage... CO2 or vacuum?

    Menace this question has been asked a thousand times. ::)
    To save you searching, as you should have, heres my answer.

    A vacuum will suck on the bean; any remaining CO2 and volatile oils will be forced out of the bean, thereby hastening staling.
    Its not all about no O2.

    So forget vacuum storage.

    Use a valved bag so that you can squeeze out the air, and then, if youll be storing unopened for more than a few days, you can heat seal it as the collective wisdom suggests the ziplocks are not 100% airtight.
    I cant be bothered heat sealing if Im storing for less than a week after roasting.



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