And, for bonus points, how are they made?
These seem like an awfully important test piece. I’m pretty sure they’re just checking for glucose with some enzyme or something. But who knows, maybe its something simple or everyday? Are all brands using the same materials?
Based on this and one other reply, I wonder if what brand of strip makes a difference. My mom’s went in blood first and someone here said they have an expiration date but the ones we have do not.