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Thread: Sealing 250g Stand-up Valve Coffee Bag

  1. #1
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    Sealing 250g Stand-up Valve Coffee Bag

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hey all,
    I have been roasting for a while and send some close friends a batch of my roasted coffee regularly for them to taste and critique. I am finding that the 250g Stand-up Valve Coffee Bags with click-zip closure are great although they some times pop open when posting. How do you seal them. Iron, Hair straightener????

    Cheers
    Fat Mac

  2. #2
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    If you want to seal them, you need to buy ones that are made to be sealed such as the ones on this page: http://www.coffeeparts.com/coffeebags/bags.html

    Im not sure if the coffeesnobs ones can be heat sealed, but if they can, you need a heat sealer, though I cant see why a hair straightner wouldnt work.

  3. #3
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    I can vouch for the hair straightner I used one for a year or so before I lashed out on a heat sealer it worked a treat!

  4. #4
    Senior Member fatboy_1999's Avatar
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    I just used an iron until I bought my heat sealer.

    They are commonly called impulse sealers and I use mine every week when I roast for others. The zip lock alone is too risky IMO for mailing.

    Do a search on the bay of evil if you want to see what they cost. Or stick with the hair straightener / iron.

  5. #5
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    Thnkyou all is it just direct heat to the bag or through a tea towel.

  6. #6
    Senior Member fatboy_1999's Avatar
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    With the iron, I used to just place it on directly. I guess it depends on your iron though. If it does not have a non-stick coating, you might like to do it via brown paper or tea towel etc.

    It only requires a very short application. Even with the purpose built thing, the heat is only applied for a few seconds.

    Also, dont seal ALL the area available otherwise it makes it very hard to open.

  7. #7
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    I got some plastic clamp/clips from a "big multinational Swedish house/furniture store" and clamp them over the top of bags that come author a zip lock. They are like two plastic strips that push together with the bag between them, giving an airtight seal.

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    Re: Sealing 250g Stand-up Valve Coffee Bag

    another ironer here when i used to buy my own browns, worked a treat for me

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    Re: Sealing 250g Stand-up Valve Coffee Bag

    Should I check with the wife before I use her hair straightener?..... :-/

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    Re: Sealing 250g Stand-up Valve Coffee Bag

    Quote Originally Posted by 786760636A7C67607B6E6360796A0F0 link=1295861552/8#8 date=1303092176
    Should I check with the wife before I use her hair straightener?..... :-/
    Wholeshotalove... Highly recommend it .. never want to mess with the missus GHD mate ..

  11. #11
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    Re: Sealing 250g Stand-up Valve Coffee Bag

    alternatively would packing tape folded over give extra security if only a few bags are being posted?

  12. #12
    Junior Member Sean881's Avatar
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    I have recently purchased an impulse sealer, PFS-300 450watt, and some silver 250g bags of evil bay. However I can not get it to seal near the bag seam or the flap ends ? Have I missed something? Do I now have 200 crap silver bags :-)

    Cheers Sean

  13. #13
    Senior Member flynnaus's Avatar
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    Impulse sealer, PFS-300 450watt, and some silver 250g bags of evil bay. However I can not get it to seal
    I have one of these sealers. It doesn't have much trouble with the stand-up bags. Are you holding it down until the light goes off? If not, then that's the problem and you might need to RTFM.
    If you are, then you may need to turn it up higher. If it is already maxed out (or close to), then try swapping to the spare wire (if they provided one). If that doesn't help (or you don't have a spare, contact the seller as it sounds like yours is faulty
    Thundergod likes this.

  14. #14
    Senior Member GrahamK's Avatar
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    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by Sean881 View Post
    and some silver 250g bags of evil bayCheers Sean
    I used some of those bags once, and did find I had to crank up the power to ensure they sealed properly.

    And as Flynnaus mentioned - hold it down at least until the light goes off and buzzer stops and then a bit more to ensure a good seal.

    GrahamK



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