How can I determine fat content in beef?
Weigh the ground meat before starting to determine its total weight.
Render as much fat as possible in the ground meat by boiling or simmering.
Use a fat separator to separate off the fat
Allow the fat to dry (or dry it by gently bringing to >100°C/212°F, beware splattering).
Weigh the amount of fat rendered.


Fat percentage is 100 × (fat weight) ÷ (total weight).

Alternative method: Ask farmer which primal cut the meat is ground from. Look up answer in table. :-P