New packaging for coffee

[timo888]

I don't get to any industry trade shows, so the technology below may be news only to me.

New developments in coffee bags.

Regards
Timo

P.S. A company that makes cans of inert gas for wine preservation happens to have their warehouse only ten minutes from my house. I am going to test that approach with bags that I re-open a couple of times a day, and with a one-way-valve-modded Snapware container, which I fill with inert gas, then beans, and then more gas, and let sit for 10 days.

[another_jim]

One way valve bags have been the industry standard since the late 70s. It gives you an extra 7 to 14 days of shelf life for our standard of fresh coffee. By SCAA standards, valve bags keeps coffee fresh for around 6 to 12 weeks.

Improvements in the mylar/foil laminates used in the packaging seem to be ongoing. I have no idea how much better a current state of the art valve bag is compared to one from 20 years ago.

[timo888]

Yes, I realize that the one-way valve is standard, but it looked also as though these have a sliding zip-loc enclosure in addition to some new laminates they're touting. In conjunction with the inert gas spray I am going to be testing, the sliding ziploc seal method would work best.

Roasters I've ordered from have used:

-- zip-loc (press to seal)
-- alligator clip
-- bent metal clips
-- sticky tape

The sticky tape is least reliable. After being opened and closed several times, it loses its adhesiveness and the bag always works its way open. The zip-loc works quite well, as does the alligator clip.

Regards
Timo