I-Qianzan izigayi zekhofi ezenziwe ngesandla umkhiqizo wekhwalithi ephezulu futhi ohlala isikhathi eside owenzelwe ukunikeza abathanda ikhofi ukulawula okugcwele phezu kwenqubo yokugaya. Lezi zigayi zekhofi ezihlangene futhi ezisebenza kahle zifaka i-ceramic conical burr ukuze kuqinisekiswe usayizi wokugaya ongaguquki, kuyilapho izilungiselelo zokugaya ezilungisekayo zivumela ukwenziwa ngendlela oyifisayo ukuze ivumelane nezindlela ezihlukahlukene zokuphisa. Idizayini eshelelayo kanye ne-crank yesandla esebenziseka kalula yenza kube isengezo esihle kunoma iliphi ikhishi lesithandi sekhofi. Ukuthi ukhetha inhlawulo isandla ikhofi grinder nge-espresso noma i-coarser grind yomshini wokunyathelisa wesi-French, i-Qianzan manual grinder yekhofi iletha inkomishi yekhofi enhle kakhulu njalo.