PB does go rancid sometimes and you can tell by smelling it. I really like Smucker's natural PB because the ingredients are just peanuts and salt. It does separate so they suggest you keep it in the fridge (that part won't help you at work QBeth, but it's yummy PB!).
PB and banana sandwich and some ice cream makes a delicious dinner! You've got fiber from the bread and banana and protein from the PB and ice cream. What more could you ask for! :lol: