How do you train a rottweiler not to chew everything?

To train a Rottweiler not to chew everything, provide appropriate chew toys to redirect their chewing behavior and ensure they have enough mental and physical stimulation through exercise and play. Supervise them closely, especially when they are young, and use positive reinforcement to reward them for chewing on designated items. If they start chewing something inappropriate, calmly redirect them to their toys. Consistency and patience are key to reinforcing good habits.