So... this identical "workflow", except no paper filter with chemicals, nor the plastic strainer leaching PFAS into our glorious concoction.

A 304 stainless steel coffee filter/strainer!

The mesh MUST BE 800. The 600 is too course. Bought it on both Amazon and Aliexpress.

Apparently, paper filters hold back the healthy fats from the beans, whilst espresso machines do not.

Clean up is painless: just rinse, the grinds fall off. Don't even need to brush or use detergents.