Old Recovery Coupons

So I recently found two recovery coupons in the back of my junk drawer - they're the old orange and brown with the store # stamped on the front.

I know that Starbucks transitioned to a gift card system a while ago but will stores still take these old certificates?

Not a huge deal if they won't, but I wouldn't mind trying a few of the new drinks if they're going to be free!