: T7 f0 L. O Z' U X/ i5 Y I used coffee grinder before. ) T% E: h) b% W1 v$ M* U5 X
$ P- ?/ X8 l; U7 o aThe 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, u. y* D! Q ^6 {$ ~5 w W+ ~9 Y 7 R, `7 x1 L! j& m3 p1 {Pepper powder is easy to lose smell and tasty, that's why I chose pepper.