how long for brisket in the oven
1 Cover tightly with aluminum foil sealed on all edges. 2  Place in oven until âfork tenderâ (190-195 degrees). 3  About 4-4Â½ hours. ( 4 May take over six hours if frozen or a whole brisket). 5  Scrap off the âfat capâ before removing from pan. 6  Then place on platter and refrigerate for a least 3 hours before cutting.