$ k# A1 p' q! @" [" Q I used coffee grinder before. * k* T* o f1 e, z* N r 4 c6 v: d- B/ t5 RThe 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. : \, L$ l! |3 {8 F4 J2 r 7 A+ X6 n) H! [( |6 t4 a$ A+ hPepper powder is easy to lose smell and tasty, that's why I chose pepper.