( G( Q c& c7 ^ 6 u& L3 P. `2 U" s1 T6 h, @ J8 t I used coffee grinder before. % |0 S M; ~- V2 L# h5 C1 M - D9 z) ~5 r+ r$ N1 W! J [The right method is to dry pepper and chilli on your frying pan, then I could use my hand to grind it to small pieces or use a rolling pin. ; z( _. b: Z: @# V ; E+ u/ \# o9 D, lPepper powder is easy to lose smell and tasty, that's why I chose pepper.