+ w* d1 B( Z8 x0 u1 b; L7 m0 k I used coffee grinder before. 8 r0 U* U, x' P A. O# V/ t
1 @4 X( T! L6 I/ I* j t2 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.4 ]* u: [/ v7 {1 p# b
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Pepper powder is easy to lose smell and tasty, that's why I chose pepper.