Soundman7 wrote:To report back, I must say the "ziplock" bags to not appear to be holding a vacuum as well as I'd like to see, but I have decided to try an experiment with something other than roasted beans, as I'm not sure if the vacuum is being lost or the degassing of beans is giving the appearance of vacuum loss (probably the latter). However, I will say for the purpose I'm using them for now (short term storage) it will still work well, as I'm just pumping out the excess daily, because they are laying on the counter with easy access until I brew'em up. So overall I'm very happy with using them them for this purpose. As for longer term usage for green beans, I'll know more after my experiment. I'll report back about the "degassing" issue soon.
The roasted would be releasing co2 in the vacuumed bag which should not harm the beans (that's what preserves them while green.). o2 is the evil one.




