$ ]2 N# T. l+ p' y( r5 h6 ^# h# R8 C7 p0 Y9 B6 f I used coffee grinder before. ' b, w2 _& y" ~9 R
: D! n1 y3 i$ ^# YThe 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. . Y# L" j& ]( V) Y ' w* v5 j+ P" G8 x. ^- J+ [- IPepper powder is easy to lose smell and tasty, that's why I chose pepper.