I do lots of camping in bear country. Black and grizzly. There are a few things people don't consider.
-garbage, it doesn't mater if all your food is secure if your garbage smells it will attract bears. Burn it. even empty beer cans.
-Dish water and dirty dishes also stink. Keep them clean and get rid of the water far enough away from camp.
-locking or latching coolers help keep smells down.
-a dog in camp helps too.