My furry kids are pretty good about chewing bones until they are pristinely white and cleaned of every single lick of goodness. At this point, the tasteless bones lay about the house, but still have lots of good ‘chew’ left on them.
To get Little Man and Big Girl interested in them again, and save myself some cash, I gently boil them in beef broth (Little Man has allergies, so we stay away from chicken) then let them cool before serving.
They will enthusiastically chew them as if they were brand new! This works for antlers they have grown weary of also. I have found Antler interest to last the longest, but it can’t hurt to refresh them with a soak.
Give it a try, your canine companion will love you for it!