I've been looking at 1/2 pound bags for home roasting. Initially, I liked the thought of the super decked out bags the big companies seem to use. They are all foil lined with degasser valves and a slick...what vinyl outside?
I recently developed a liking for the really simple bags coava, blue bottle, and stumptown use. They are recycled (or can be), and are just super plain old style "popcorn" like bags with a poly..something lining.
Question: Do they seal the bags? Wouldn't they burst? Are the valves really THAT necessary?
It seems to me that you could let them degas a bit, then package them up. It seems simple, especially since you should be drinking your coffee before you need to worry about how long it stays fresh. I leave my coffee in the bags always, and I also don't buy a lot so I can drink it within two weeks or so.
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