Allyson -

I think women are more sensitive to rancidity than men are, for evolutionary keeping-infants-safe reasons. And of course some women are more sensitive than others. So what one person might think smells foul, another might think smells fine.

I seem to be fairly sensitive to it so I try my best to store things as best I can.

Here's an interesting Washington Post article on it -

Nuts and Rancidity

Lisa Shea, Low Carb and Video Games Editor
Low Carb Forum