I use 195 as a guide. My opinion is that is the lowest temp as you asked. Others will tell you something different. There is no rule, more like how you like your meat done.
Judge Jim, Given to me by Terry @ Git R Smoked.
Chef Jim, Gym, Jim, or CJ. I'm not a Chef, but I play one on the internet.
A veteran is Someone who, at one point in his life, wrote a blank check made payable to "The United States of America", for an amount of "up to and including my life." That is honor, and there are far too many people in this country who no longer understand it. Author unknown.