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?
Looking at the bottle my test strips are in, they contain: flavin adenine dinucleotide dependent dehydrogenase (from Aspergillus sp.); potassium ferricyanide; and other ingredients.