My first shots with Prismo were a bit too bitter and sludgy. After a few tweaks, I came with a clean and thick cup.
I use a medium-dark roast, so the aromatic profile is closer to cocoa, with relatively low acidity. You can try medium and light roasts for a zesty shot!
P.S: You'll need to use the Fellow Prismo metal filter AND the Aeropress paper filter for this recipe.