How to use it:
Put a teaspoon (3 to 5 grams) of Puly CAFF in the one-eyed filter (also called a holeless filter or blind filter). Run the water as if to make a coffee and wait 15 seconds. Unload, rinse and repeat without the powder several times (5 to 6 times). Finally, run an espresso with your ‘normal filter’ and unload.