I had to laugh about coffee beans and 3 weeks. Ha. I buy the huge
economy size bag of beans and it lasts for a month or more.

I found an opened bag of black tortilla chips in the back of a
cupboard yest - eww - rancid. I feel like i"m throwing money in the
garbage, but won't take a chance on it.

I didn't notice the article treating on old canned goods e.g. canned
peaches a year past the 'best by' date.