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Thread: removing odours from one way valve bags for re-use

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    removing odours from one way valve bags for re-use

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I made an interesting discovery over the weeked which I thought was worth bringing up. I tend to re-use my one way valve foil bags a few times before throwing them out. On a hunch, I wondered if leaving the bags in the sunlight for a few days would remove the stale coffee smell after wiping them out with a damp towel.

    I have a few bags with one side clear and a few others that have no viewing window. After leaving them in the sun for two days, the bags with the clear side have no detectable smell at all. Compare that with the bags that are designed to block out sunlight which still have a slight smell.

    So kids, if you want to reuse those bags, expose them to sunlight.

    The other moral of the story is that exposing your coffee beans to sunlight is really really bad for the aromatics. mkay?

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    Re: removing odours from one way valve bags for re-use

    Hand wash them with detergent, rinse well and let them dry

    Next time you roast place the the beans in a freezer bag and slide that into the clean one way valve bag and seal it
    This will eliminate the problem

    KK

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    Re: removing odours from one way valve bags for re-use

    I tried the freezer bag trick for a while, I ended up spilling beans everywhere on a few occasions because the freezer bag didnt let them pour out smoothly.

    Im fairly dscriminating with the reuse of bags. If they smell, they go in the bin.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 73717D75757B7C61120 link=1249301023/2#2 date=1249302216
    I tried the freezer bag trick for a while, I ended up spilling beans everywhere on a few occasions because the freezer bag didnt let them pour out smoothly.
    Practise makes perfect. :P

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    Re: removing odours from one way valve bags for re-use

    I use the freezer bag method now for my home use beans - thanks to TG for the idea.

    I find it works really well, but YES you need to be more careful pouring the beans out.

    I got into the habit of pouring them out very fast when there was no freezer bag in place. Now I just need to make sure I take a bit more care lest the precious cargo may end up scattered on the bench.

    Only had one spill so far, but it has saved me about 30 bags, so I like the freezer bag idea personally.

    Brett.

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    Re: removing odours from one way valve bags for re-use

    Id never heard of the frezzer bag idea, brilliant, they do add up over time those bags!, cheers KK

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    Re: removing odours from one way valve bags for re-use

    Youre welcome Sully. ;)

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 7F7B5D4444415E4946280 link=1249301023/5#5 date=1249351109
    cheers KK
    Quote Originally Posted by 7C405D464C4D5A4F474C280 link=1249301023/6#6 date=1249351621
    Youre welcome Sully.
    I had a laugh, sorry mate credit where credits due! CORRECTION Thanks TG

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    Re: removing odours from one way valve bags for re-use

    Although I now use freezer bags after reading it on a post
    I converted from brown paper bags fitted as inserts in the one way valve bags .
    These were good, but we dont buy them any more and freezer bags took over

    KK

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    Re: removing odours from one way valve bags for re-use

    Something else I found with freezer bags which prompted me to stop using them was I found the aromatics diminished.

    Anyone else noticed this?

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    Re: removing odours from one way valve bags for re-use

    Something else I found with freezer bags which prompted me to stop using them was I found the aromatics diminished.

    Anyone else noticed this?

    No.

    Your explanation/theory?

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    Re: removing odours from one way valve bags for re-use

    No explanation, no theory. Simply an observation.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 72707C74747A7D60130 link=1249301023/9#9 date=1249358428
    Something else I found with freezer bags which prompted me to stop using them was I found the aromatics diminished.

    Anyone else noticed this? *
    Have not noticed at all and have been using the freezer bag for some time now.

    Mal

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    Re: removing odours from one way valve bags for re-use

    Perhaps I should revisit freezer bags then

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 44464A42424C4B56250 link=1249301023/9#9 date=1249358428
    Something else I found with freezer bags which prompted me to stop using them was I found the aromatics diminished.

    Anyone else noticed this?
    You were using them as a liner in a 1-Way Valve bag.... Right? :-?

    Mal.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 2F2D21292927203D4E0 link=1249301023/2#2 date=1249302216
    I tried the freezer bag trick for a while, I ended up spilling beans everywhere on a few occasions because the freezer bag didnt let them pour out smoothly.
    And
    Quote Originally Posted by 2F2D21292927203D4E0 link=1249301023/9#9 date=1249358428
    Something else I found with freezer bags which prompted me to stop using them was I found the aromatics diminished.

    Anyone else noticed this?
    I wonder if snack bags like the ones chips are sold in can be purchased to be used as an insert

    The stiffness may assist in easier pouring

    As an experiment I will try these bags out when I get an empty one next time we consume some snacks

    Just to see if the reflective foil has a good effect on the diminishing aromatics

    KK

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    Re: removing odours from one way valve bags for re-use

    Mal, yes, I was using them as an insert. Ive also recently been using sandwich bags with the zip lock, but no valve. I found the same thing, a diminished aroma.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 03010D05050B0C11620 link=1249301023/16#16 date=1249592238
    Mal, yes, I was using them as an insert. Ive also recently been using sandwich bags with the zip lock, but no valve. I found the same thing, a diminished aroma.
    Im a little confused ;), so your using sandwich bags closed in a one way valve coffee pouch? or is "as an insert" insinuating being open?

    I had a laugh, im lost :-/

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    Re: removing odours from one way valve bags for re-use

    insert a freezer bag in to the one way valve bag, then put beans inside freezer bag. Zip lock to keep in freshness.

    When the beans are finished, replace the freezer bag and then refill.

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    Senior Member caffeol's Avatar
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    Re: removing odours from one way valve bags for re-use

    I have been using the freezer bags as a disposable insert in the valved bags -just push the inner bag down without sealing it and zip the outer bag. I havent noticed any difference in aroma but I wouldnt expect to be able to being relatively inexperienced in such matters.

    I had to use a slightly larger bag when we ran out of freezer bags one time. I found that if you fold the excess bag down around the outside of the vave bag the pouring becomes much smoother. Plan is to keep using the oversize bag.

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    Re: removing odours from one way valve bags for re-use

    is there any way of doing this without throwing away so much plastic?

    I wants to cools my beans in an friendly way to the environments.

    toomuchcoffeehorse.

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    Re: removing odours from one way valve bags for re-use

    Use a glass jar. But then you cant squeeze the air out.

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    Re: removing odours from one way valve bags for re-use

    is there any way of doing this without throwing away so much plastic?
    Use "no frills" bags; they are cheaper and seem to be thinner (ie less plastic).

    coffee horse - the alternative is to do what most people used to do and throw out the used valved bag.

    This way IS the environmentally friendly option because you are throwing out fewer valved bags.

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    Re: removing odours from one way valve bags for re-use

    Coffeehorse, or use paper bags....and you know how that worked out for you...

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    Re: removing odours from one way valve bags for re-use

    I had to use a slightly larger bag when we ran out of freezer bags one time. I found that if you fold the excess bag down around the outside of the vave bag the pouring becomes much smoother. Plan is to keep using the oversize bag.
    This is what i do, i have found the coles medium freezer bags are a perfect size for 500gm ziplok coffee pouches.

    Mal

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    Re: removing odours from one way valve bags for re-use


    If you seal the freezer/sandwich bag and then place it in the one-way valve bag, doesnt that defeat the purpose of the valve :o


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    Re: removing odours from one way valve bags for re-use

    The seal on the sandwich/freezer or even the valve coffee bags are not completely air tight.

    The only way to make them air tight is to heat seal it.

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    Re: removing odours from one way valve bags for re-use

    slightly off topic, can someone advise me where one can by some good one way valve coffee bags around melbourne cbd/se suburbs? So far I have bought beans from St Ali and BBB and they come in paper bags.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 604741464B320 link=1249301023/25#25 date=1249716051
    If you seal the freezer/sandwich bag and then place it in the one-way valve bag, doesnt that defeat the purpose of the valve
    I dont recall anyone saying to seal the freezer bag; I certainly never have.
    Its purpose is to be a liner to save dirtying the valved bag with coffee oils.

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    Re: removing odours from one way valve bags for re-use

    sy,

    Andy sells the bags. Other than that, I actually dont know where to buy them from unused. Unless you want to order in bulk.

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    Re: removing odours from one way valve bags for re-use

    cheers - very handy indeed.

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    Re: removing odours from one way valve bags for re-use


    Quote Originally Posted by 477B667D777661747C77130 link=1249301023/28#28 date=1249726404
    I dont recall anyone saying to seal the freezer bag; I certainly never have.
    Its purpose is to be a liner to save dirtying the valved bag with coffee oils.
    Quote Originally Posted by 72707C74747A7D60130 link=1249301023/18#18 date=1249604817
    insert a freezer bag in to the one way valve bag, then put beans inside freezer bag. Zip lock to keep in freshness.
    I took Acogs suggestion to mean to seal the inner bag ::)

    A little confusion goes such a long way :D

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 515B220 link=1249301023/27#27 date=1249726011
    can someone advise me where one can by some good one way valve coffee bags around melbourne cbd/se suburbs?
    No idea as far as retail goes, you could try getting some direct from a roaster, i buy mine from Coffee Parts and they usually arrive within a couple of days of ordering. I purchase the 500gm pouches usually about 100 at a time.

    Mal

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    Re: removing odours from one way valve bags for re-use

    I dont want to hijack this thread, but what is the consensus on those vacuum containers? I guess they are not as practical as the bags, as I currently have 3 different blends in the cupboard and could not justify $150 just for containers.

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    Re: removing odours from one way valve bags for re-use

    sv, my understanding is that they are not as good because you are actually drawing the flavour/aroma/oils etc. out of the bean by putting them in a vacuum situation.
    Stick with the one way valve bags as they have been tried and tested.

    Mal

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 59532A0 link=1249301023/33#33 date=1249808756
    I dont want to hijack this thread, but what is the consensus on those vacuum containers? I guess they are not as practical as the bags, as I currently have 3 different blends in the cupboard and could not justify $150 just for containers.

    i guess if youre using it up before it goes stale than they wouldnt be much use to you.

    there are however, a lot of people out there that would take them a month to go through 250g so in that case would be helpful.

    and for reuse as well. far easy to clean than a one way bag. ive had customers in the past come in with there vacuum container or tin and would give them a top up. saved us a bag here and there.

    luke

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    Re: removing odours from one way valve bags for re-use

    Sorry Luke but I dont see them as helpful at all.

    I can go through 250g in a month using a freezer bag lined one way valved bag.
    The difference being that the life isnt being sucked out of the beans over that month, only the air being squeezed out by hand.
    Id say that theyd keep better in the bag than in the vacuum container.

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    Re: removing odours from one way valve bags for re-use

    Luke I got some vacuum containers and gave them a trial a while back and the smell of the beans after 4-5 days was horrid IMO. They not only sped the aging process they tainted the beans with stale oils at the same time, and Im not talking oily beans either.

    2cents

    Chris

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    Re: removing odours from one way valve bags for re-use

    I think they have their purpose. *I use one for accelerating post-roast readiness when Ive left roasting too late, just for the first day or two. *At all other times Im a valved, foil-lined bagger.

    But those who want environmentally friendly reuse, lack of fuss, dont have access to foil bags and perhaps arent in the most discerning end of the coffee loving spectrum may find them quite helpful indeed.

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    Re: removing odours from one way valve bags for re-use

    thanks for the info guys - very much appreciated. Looks like valved bags are the go - good tip with the freezer bag for longevity.

    So far I have only tried various beans from St Ali & BBB and because they sell them so close to the roast date (2-3 days max) - I need some suitable storage otherwise I dont think I will be able to experience them at their best.

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 695C454F1B1A2C0 link=1249301023/38#38 date=1249815009
    I think they have their purpose.I use one for accelerating post-roast readiness when Ive left roasting too late, just for the first day or two.
    Great tip Epic ;)

    Quote Originally Posted by 695C454F1B1A2C0 link=1249301023/38#38 date=1249815009
    and perhaps arent in the most discerning end of the coffee loving spectrum
    I am talking noticable to a GJ tea drinker (not offense tea drinkers always have a CS PNG Tea) ::)

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    Re: removing odours from one way valve bags for re-use

    Quote Originally Posted by 594E4F5144454E1A191A2B0 link=1249301023/37#37 date=1249814905
    Luke I got some vacuum containers and gave them a trial a while back and the smell of the beans after 4-5 days was horrid IMO. They not only sped the aging process they tainted the beans with stale oils at the same time, and Im not talking oily beans either.

    2cents

    Chris
    ill have to find one and try it out again. its been a long time.

    did the smell carry through into the cup?

    i cant understand how they would speed up the againg process, as its the oxidation of the oils that makes it go rancid.

    anyone else care to enlighten?





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