While meat must be cooked to at least 165°F to be food safe, brisket is best when cooked to a higher internal temp (190°F to 200°F) because it's at these higher temperatures that its tough ...

The Best Method for Reheating Brisket for ... 10 to 20 minutes before reheating to come to room temperature. Place the brisket in a slow cooker. Add enough liquid to submerge about a quarter ...