Share 'Making cocoa liquor'

Greetings all, I'm looking for a way to make cocoa liquor from nibs to feed my santha grinder. After much investigation I purchased a spice grinder which grinds nibs into powder, but this also seizes up the Santha. Even when the ground powder is warmed it does not melt into liquor. Perhaps I need a different type of grinder, maybe one that produces more of a shearing grind rather than a rotor wit…