No need to boil them. They are very hard though, so if you have a strong chewer I'd be cautious giving them antlers. They can break a tooth, so it's something to be aware of. I have a couple of antlers for my dogs, only my dane chews them and she liked the split antlers better. But she isn't a strong chewer so I don't worry about it. But I wouldn't give them to my lab/pointer, he could crack or break a tooth the way he chews. I've read of some people soaking the antlers in stock to attract the dogs to them, but I'd try them as is first.