If the nuts smell bitter, sour, or paint like, they are rancid. Mild nuttiness means they're not. Changed taste. Harsh or bitter flavor means the fats in the nuts have gone rancid, and you should discard the nuts.

Can almonds go bad and make you sick?

Consuming rancid or stale nuts like almonds, walnuts or cashews in small amounts may not immediately make you sick, but it's generally not advisable as it may hamper digestion or have other harmful effects on your body in the long term.

Can I eat almonds after they expire?

You can eat nuts that have expired as long as the oils in them haven't become rancid. Typically, you can eat nuts 6 months after the printed date in the pantry, 1 year after the date if they're in the refrigerator and 2 years after the date if they're in the freezer.