1, 15 to 20 minutes or so.
2, if the meatballs are the size of a dumpling turn on high heat and steam for 10 to 15 minutes. For larger meatballs, steam for 15 to 20 minutes. Before making meatballs, clean the beef into minced, add salt, fish sauce, water, chicken baking powder in the meat and mix well cover with plastic wrap and put in the refrigerator for 4 hours, remove, pinch the meat into a meat ball, put the pot on high heat and steam for 15 minutes.