Rinse the arrows well under running water, dry them.
Pass through a meat grinder with a fine grate.
Spread out on trays for pastilles.
Insert the trays into the pallets.
Dry in an electric dryer at a temperature of 65°C-70°C until completely dry. The consistency of the powder turns out to be rough and crunches between the fingers. Therefore, it is better to grind it in a coffee grinder to a smaller fraction, but you can leave it like this.
It is necessary to store the powder in a glass or ceramic jar with a tight lid at room temperature.Have a nice workpieces for you!