We have added 10% beef fat in our elk burger for years and have never had a problem. It often takes us a couple of years to use up all of the meat from a large bull. Having switched to a ketogenic diet, we will go to 20% next time. I didn't get an elk this year, but the grandkids have two cow permits for a late hunt. I suspect that I will still get a chance to see how 20% works.
