Immediately after cooking beef slices, scum will floor. Make use of the ladle to remove the scum (try to not just take far too much broth with it) and clean it off during the bowl of drinking water. Repeat this throughout the cooking as the thing is scum surfacing. Here https://bobo-shabu-and-grill15925.eedblog.com/34245187/detailed-notes-on-shabu-works