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& F- j5 n. j( F$ P8 r2 F I used coffee grinder before. 6 n! f; f$ B9 ]2 l1 g9 w1 F 6 W/ s) z) |- p5 C9 n( y4 |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. 3 k. d+ J+ j0 C3 b : F6 H# W6 n0 e) Q, I! {* @Pepper powder is easy to lose smell and tasty, that's why I chose pepper.