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What is the Ideal Temp and Environment for storing your roasted Coffee

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  • What is the Ideal Temp and Environment for storing your roasted Coffee

    Been Roasting now for about 2years and have noticed that the diffrent ways i store my coffee seem to have a med. to large affect on the tast of the coffee.
    For example I always store them in clean airtight container or bag , but as i live in brisbane an the days can be quite hot as is the house from time to time I have tryed storing the beans in diffrent places from the bottom of the fridge to the back of the cupboard .
    i have noticed
    1 . That when stored in the fridge that the beens last longer before the oils come to the surface of the beans ,but the tast in some cases has seemed to have changed to a more undesirable flavour ...
    if stored in normal envirment i tend to try and use earlyer ( within 10-12days.
    Has any one done  or seen any studys on temp and bean tast?
    How does Every one else Store there beens?
    Thanks Michael
    8-)

  • #2
    Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

    Gidday and welcome to CS

    For me as well as many others here I pop mine in to a one way valve bag (available through Bean Bay) and store in a cool cupboard. TG suggested putting them in to a freezer bag first (Brilliant) this keeps the oils off the bag and dont need to wash out between fills, just throw out the freezer bag. Not sure about fridge storage it seems to be a no no, but others more clued up will explain why. If you google bean storage you should find plenty also.

    Chris

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    • #3
      Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

      Originally posted by 514647594C4D46121112230 link=1237991957/1#1 date=1238010381
      TG suggested putting them in to a freezer bag first (Brilliant) this keeps the oils off the bag and dont need to wash out between fills, just throw out the freezer bag.
      I noticed that thread and have started implementing the idea.

      I can only concur - Brilliant!!!

      Nice one TG

      Chris

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      • #4
        Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

        Hi Michael,

        have a browse here for a bit more info http://coffeesnobs.com.au/YaBB.pl?num=1234837789 if you already havnt found it. Lower temp sealed from the open air and dark is best but a fridge is not so good as it is a moist enviroment.

        Comment


        • #5
          Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

          http://www.freshpatents.com/Method-of-storing-roasted-coffee-beans-dt20080925ptan20080233265.php?type=descriptiont

          Found something A bit Diffrent but Related to this .
          It States that storing coffee at or below  0.C after Roasting slows down - stores  the corbondioxide in the bean longer,and hence the flavour of the coffee after extraction  holds its flavour longer .
          Great for anyone who loves Ice coffee and wants to keep a certain flavour.... Not so good for someone like myself who likes a short black but without the taint off the carbondioxide..
          Looks Like im on the right Track...
          Thanks for the welcome RedZone I also live Under THE  RED  
          and just like HIM i dont mind abit of the other red also ..!

          Comment


          • #6
            Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

            Some cafes around Melbourne have begun using wine fridges for storing their beans. The idea being that they maintain a cool, constant temperature and controlled humidity.

            Im not sure of the results, but it would make sense to me.

            Comment


            • #7
              Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

              Some people also suggest/recommend vacuum packing the beans...
              But we know better, so best to ask and see why people recommend any particular method. Similarly I wouldnt bother with Nitrogen purging either.
              Most common consensus seems to be sealed in a valved bag and kept in cool (as possible) dark cupboard, because it tastes best.


              Bullitt

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              • #8
                Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

                This is a worthwhile article on the taste difference/longevity of coffee stored in fridge/freezer/cupboard:

                http://toomuchcoffee.com/wiki/index.php/Fridge,_freezer_or_shelf:_What_to_do_when_storing_ beans_for_longer_periods_of_time

                -ACog

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                • #9
                  Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

                  Yep this may be a rough experiment but it sounds like coffee stored in the fridge will tast more bitter than one stored in the cupboard over shorter periods off time .
                  This was the sort of answers i was looking for .
                  Thanks ACOG!
                  Wont be puting them in the fridge anymore . I have done this on hot summer days from time to time and wondered why the tast was a bit bitter after. :
                  Will b e keeping my eye out for a wine keeper now.

                  Comment


                  • #10
                    Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

                    I would have to concur... switched to the wine cabinet (18C const) for coffee (good for choc too) from the fridge a while back and notice the improvement.  Impulse sealed valve bags seem the go - used by my local roaster w/o vac.  I do use freezer for 3+ week storage in those valve bags... interesting that I get the bags into the freezer within a few hours of roast and notice they only outgas a small amount in the freezer and most in the couple of days I leave them in the wine cabinet to come up to speed.  So I think that test above was invalid as the beans should have been left longer from the freezer.  The expert testing on HB showed minimal degradation 2+ months in deep freeze (-40C) once you got past the freeze/thaw cycle.  Not so good in domestic fridge freezer (-17C for mine) of domestic chest freeze, usually -23C.  I am just starting roasting so expect not to need the freezer any more, currently still buying browns as well though, not to lose touch.

                    Eric

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                    • #11
                      Re: What is the Ideal Temp and Envirement for storing your roasted Coffee

                      I wholeheartedly agree with their sentiments of why freeze.

                      Given however that that was what was being tested I would have added a further test. The use of airtight bags for storage in the freezer as well as the oneway valve bags. Due to the design of the valves I can easily see them leaking in the freezer and loosing their onewayness. Which could potentially drastically alter the flavor of the beans.


                      Java "Use it fresh!" phile
                      Toys! I must have new toys!!!

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                      • #12
                        Re: What is the Ideal Temp and Environment for storing your roasted Coffee

                        On the topic of freezing - I think this is a good article that shows it is not all bad. You should read if you have not seen it.  I would trust Ken Fox. http://www.home-barista.com/store-co...n-freezer.html and the followup http://www.home-barista.com/tips/fre...wo-t10301.html and yes one should tape up the one way valve before freezing as it relies upon a drop of oil that might get stuck in the open position.

                        Eric

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                        • #13
                          Re: What is the Ideal Temp and Environment for storing your roasted Coffee

                          Gday Eric,

                          Yep, that info was posted up a few months ago by Luca, I think. The crux of doing this though, is having a freezer that gets cold enough so as to pull the beans down to -25C or better ASAP. And then at the other end, ensure that you follow a really good thawing-out procedure. If possible, I think it is better to avoid the situation in the first place by timing your roasts and batch sizes to match ones consumption rate. Itd be a real bugger to ruin a whole bag of great beans because something in the freezing/thawing process wasnt ideal.

                          Mal.

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                          • #14
                            Re: What is the Ideal Temp and Environment for storing your roasted Coffee

                            In January I purchased a 500g bag of CS Gold. As it was a only a  few days past roasting date and I already had a couple of bags of roast beans to use, I decided to freeze the CS Gold.

                            I filled an old Moccona coffee jar to the brim, shook the beans down and added more to make sure the jar was completely filled with as little airspace as possible. I replaced the lid and popped the jar into the freezer of my fridge (top shelf). I dont own a deep freezer.

                            Towards the end of February with only a few days before I went travelling, I removed about 100g of these beans and transferred to remaining to a smaller far, once again ensuring that the jar was filled as much as I could add then put back in the freezer.

                            The coffee I made from the thawed beans for the next couple of days was OK - not bad.

                            I returned from my trip last Saturday evening, removed the jar and let the beans thaw overnight in the jar - sitting on the bench.

                            I transferred the thawed beans to a freezer bag and then into a 1-way valve bag (the TG solution!) and have been consuming these since Sunday morning.

                            The coffee I made this morning is as close to one of the best cups Ive ever made - the shot had plenty of crema and tasted OK.

                            Admittedly, all the coffees Ive made with this thawed batch have been milk-based but there was no significantly detrimental effect on the quality of the coffee after 2 months in a standard freezer.

                            Admittedly this is purely anecdotal and far from scientific but I would have no problems doing this again based on my experience.

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                            • #15
                              Re: What is the Ideal Temp and Environment for storing your roasted Coffee

                              Good to know flynn_aus...

                              Mal.

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