[ozten]

Both! I've made tortillas from store bought masa harina for over a decade.

I've bought typical corn tortillas at the store as well as tastier refrigerated ones.

Starting from corn kernels is a huge difference to both.

What I understand about manufactured masa harina ("corn flour") is that masa paste is baked to drive out the water and make it shelf stable. This also cooks out some of the deep corn flavor that you can't get back.

[djrogers]

> Both! I've made tortillas from store bought masa harina for over a decade

Note that's a completely different thing from store bought freshly ground masa.

[igouy]

> This also cooks out some of the deep corn flavor that you can't get back.

And yet, from masa harina, freshly cooked tortillas are still "a huge improvement over store bought tortillas" "a different product than store bought".