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Thread: One-way valve containers on sale.

  1. #1
    Senior Member Pavoniboy's Avatar
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    One-way valve containers on sale.

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi, I found some good quality plastic containers with one-way valves on the lid. They are called Lock and Lock containers. They are on sale at Myers until 14 Jan. The size I bought (600mL rectangle) was usually $20 down to $8.

    Originally designed for food, you lock the container and then squeeze, you hear the air rush out of the valve, and apparently keeps food for longer. You can release the valve before opening to ensure the vacuum is still present (hear air rushing back in) - works well, left one locked for 3 days - still had all of the vacuum.

    However, I imagine they work well for fresh roasted coffee. I put the results of my first roast into one yesterday. Squeezed it - air came out - container slightly concave. Today - container not concave at all - back to usual size and shape. Can smell the gases escaping and mingling in my cupboard.

    Just thought Id let you know in case you are after something with more longevity than the bags.

  2. #2
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    Re: One-way valve containers on sale.

    Hi there
    The only issue i see is that unlike a flexible bag you cannot squeeze out the air before you close the lid.
    The is important in keeping beens fresh as you start to consume your batch, unless of course as the qty of beans decreases you move them to a smaller container with a one way valve.

    Mal

  3. #3
    Senior Member Pavoniboy's Avatar
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    Re: One-way valve containers on sale.

    Yes...I thouht of that. Was considering running my own trial with a bag and the container and the same batch of beans split between the two to see the difference. I assume there will be a difference but how much is my question?

    I planned to fill the containers to the top to minimise the air inside, and then squeeze out what I can. My first roast didnt quite fill this container but will adjust as necessary.

    I am thinking the bags must have air left in them, but much less than the container. If I minimise the air possible in the container, how much is the difference between the two? If I do my experiment I will let you know. Problem is I have read how much better things are with an impulse sealer which I do not have, so would be comparing simply zip locking and squeezing bags with the container.

    I am thinking of buying a smaller container to transfer to as I drink down the roasted beans, as you suggest. However, now that I am home roasting I am not as concerned about my efforts to keep the beans fresh as I drink through a batch. I plan to do regular small roasts so I am in constant freshness!

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    Re: One-way valve containers on sale.

    I used valved bags but i dont heat seal the top at all, i generally just rely on the snaplock seal at the top of them.
    I also line the bag with a freezer bag so that the oneway valve bag can be reused easily without needing to be washed out.

    Mal

  5. #5
    Sleep is overrated Thundergod's Avatar
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    Re: One-way valve containers on sale.

    That freezer bags a great idea!

    I dont always impulse my reused bags either as I think I go through my beans fast enough to not worry about it.

    I usually roast 500g net so might heatseal the second bag as Ive found that the ziplocks wear after quite a few uses.
    If Im using a new bag Ill rely on the ziplock.

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    Re: One-way valve containers on sale.

    I think the freezer bag idea is great, especially since i didnt have to think of it, some other thinking great (TG) gave me the info on doing this ;)

    My coffee consumption has dropped to 1 - 2 a day and decaff at that. On a diet now (with the wife unit) so consumption wont be anywhere near what it was for the next couple of months or so, this make the flexible valve bags even more important.

    Mal

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    Mal Dimal's Avatar
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    Re: One-way valve containers on sale.

    I still seal the (500g)bags as theyre usually left for between 7-10 days to rest and develop flavours properly. Ive found that if I opt not to seal, then the coffee doesnt taste as good and it also doesnt taste good for as long either.

    Have pretty well got the bag sealing down to a fine art now anyway and waste very little of the top section above the Zip-Lock. Probably get about 8-10 reseals per bag now and when you multiply that by 20-30 bags bought at a time, that works out to an awful lot of home-roasted coffee ;)

    Mal.

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    Senior Member Pavoniboy's Avatar
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    Re: One-way valve containers on sale.

    Hmmmmmm....given the number of reuses, especially with the freezer bag (brilliant) I may just go for the bags now.

    Ill try my experiment comparing the two when I get around to it, but even if I cant pick a difference I think Ill be psychologically swayed to the bags anyway - the thought of all that less air to begin with is appealing.

    Given Mals comment that he can tell the difference between impulse sealing and not, I assume I should definitely be able to tell the difference between the container and a bag...Im almost convincing myself to not bother with the experiment!

    thanks,
    Travis.

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    Senior Member Pavoniboy's Avatar
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    Re: One-way valve containers on sale.

    As far as the first day of tasting, after leaving beans three days degassing, I cannot tell the difference between bag and container.

    However, obviously as drinking down the coffee stock over coming week the bag is far superior, being able to exclude much more air. So its pretty pointless to begin with the container if its only going to end up in the bag anyway.

    Oh well, the containers work well for food.

    Travis.

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    Re: One-way valve containers on sale.

    Quote Originally Posted by 7A77747A180 link=1231377532/5#5 date=1231383765
    My coffee consumption has dropped to 1 - 2 a day and decaff at that. On a diet now (with the wife unit) so consumption wont be anywhere near what it was for the next couple of months or so, this make the flexible valve bags even more important.

    Mal
    Mal cant bear to hear of someone being deprived of good coffee, maybe I can help you here. *;) Caffeine stimulates the metabolism, so you can drink all the espresso you like and as long as you dont add milk youre ahead.

  11. #11
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    Re: One-way valve containers on sale.

    Hi Pete
    I think i will stick to no caffeine for the moment though, the flavour is good, the only issue is the fact that you cant seem to get a variety of decaf beans.
    From what i can tell they start life as a standard colombian bean, if someone can find a decaf version of Indian Tiger Mountain then that would be great.

    Mal



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