Assertion: cocoa powder's cocoa butter | /r/CapableOf | introduce the five roller mill
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Source sentences:
text: Some major breakthroughs were established by Van Houten (creating the cocoa press, so that the cocoa solids and the cocoa butter can be separated, as well as the alkalisation procedure) and by Stollwerck (introducing the five roller mill to create very finely ground chocolate liquor).