Can I mill grain in a coffee grinder? | The Fresh Loaf

I purchased one of these conical burr coffee grinders recently.

It works well for coffee beans, which it can grind down to a near-powder.

Question: Can it mill grain?

If not, why not?

Is it because the finest grind setting "espresso grain" would still be too coarse for flour?

Is it because the friction of a conical burr would expose the wheat to too much heat/friction? (And what would that heat do to the flour that, say, a stone (or other type of grain) mill wouldn't?)

I suppose I could just buy some wheat berries and try it out, but I'm curious.

What opinions ye?

(I recognize that it's not built for high-volume grinding. If it could work, I'd only use it for small quantities of grain for a levain (or single loaf quantities)).

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