You may pinpoint the major flaw in my feeling - they last so long the elapsed time wasn't precisely measured. :) Let enough months pass and they seem to thicke

You may pinpoint the major flaw in my feeling - they last so long the elapsed time wasn't precisely measured. :) Let enough months pass and they seem to thicken up some - still edible, but definitely past their best. None of the box we misplaced at the back of the store cupboard were off.