$ L8 {5 p% k7 w9 q ! Z0 N/ k- J. B I used coffee grinder before. n d2 N Y) t& N& {8 v 7 y5 M+ y( B* GThe 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. $ U% D: y0 q) q; `" V" j# j c+ `4 x Q! L7 S8 F
Pepper powder is easy to lose smell and tasty, that's why I chose pepper.