
As far as mylar bags go - it is a long term storage option and probably not something you will be doing if the SHTF already. When you are ready to do some bags you don't need a special mylar sealer - your household iron works just fine and a hair straightener works too.
The blue jars available right now are a 100 year promotion for Ball and the color will not effect the light at all. When you see the jars with food in them they really aren't that dark at all - just pretty. My sister bought me some for my birthday because I was too cheap to pay 4x the price as the regular ones - she loves me

In the dark or back in the boxes is the best for storage. I prefer to see what I have so I keep them out of the boxes and on shelves. Bugging out is a whole nuther food storage deal isn't it. The vacuum sealer using the bags would be your friend in that instance. There's another item to research and save for - your welcome
