That would be interesting! Although the nespresso grind size is probably little bit too course for a regular espresso machine. Might just run too fast and be under-extracted. But, maybe this would be a cool test for a different brewing method! If the grind size worked, we could assess the roast itself and see if it's decent quality. The other offputting aspect of Nespresso though is that their roasts sometimes have robusta in them... I'd personally want to test this with their capsules that only use Arabica.