Old Ghirardelli brownie mix, still good?

[Shel_B]

A few days ago, I discovered a few sealed packages of Ghirardelli brownie mix. Each serving is packed in plastic pouches. They are at least four years old. Might they still be useable? I cannot find a use-by or expiration date on the package.

 

Edited 10 hours ago by Shel_B
clarity (log)

[Smithy]

Speaking as someone who's been excavating pantry and closet storage lately 😁 I'll tell you this: the worst that can happen is that the flavor will be less than you'd like, and maybe rancid. Give it a try! If it doesn't work out, you'll be out a few extra ingredients. I doubt there's a health or safety hazard.