Puly Caff Powder was the first cleanser specifically designed for
group head maintenance (hot water nozzle, basket and porta filter) for
a coffee machine's discharge valve, without affecting the chrome metal
parts and without leaving any toxic residue in any part of the
espresso.
It's also unbeatable for soaking cups and pots because it
cleans and eliminates any trace of coffee from ceramics and china
without damaging even the most delicate decorations.