Altitude > 6000 feet
Also of concern is a bag of
basmati rice packaged in San Francisco, that has filled up with air.
Maybe this is actually a good thing, for the chips
anyway -- they might be better protected with the excess air as they rattle around on their ride along the highway. And they might stay fresher.
On the other hand, the rice might do better in a Ziploc bag. Maybe I'll do just that -- double bag the rice so if the bag does explode I won't have rice all over the cabinet.