That is an excellent article . Thank you so much. I like the Acana bags cause they have a zip seal and I always test it to see if air comes in and if it is zipped properly. My cani-source on the other hand comes packaged with a twist tie and in a box. I'm wondering if I should put the kibble in a freezer safe bag and keep it in the freezer and then just take out a week's worth at a time?