The hardness test: how to tell if a chew is safe for your dog's teeth

"Is this too hard for my dog?" is the most common question a chew shop gets, and it is the hardest one to answer honestly - because the honest answer depends on the dog in front of you. What you can do is judge the chew itself before it ever reaches the floor.

The thumbnail test

Press your thumbnail into the surface with real pressure. If it leaves a mark, the chew has some give to it. If it does not, you are looking at something your dog's teeth are going to have to break against. That is not automatically bad - a power chewer needs something with no give - but it should change who you hand it to.

Compare it to something you know: a raw carrot leaves a mark, a frozen carrot does not, and a dried knuckle leaves nothing. Your dog's teeth are tougher than your thumbnail, but the ranking holds.

Then match it to the dog

• Gulps rather than chews: soft, small, supervised, or nothing at all.
• Chews steadily and stops when the piece gets small: most chews are fine.
• Grinds for hours and has destroyed every previous chew: the hard end is where they belong.
• Any dental history at all: talk to your vet before the hard stuff.

Signs to take the chew away

• The piece has a sharp or jagged edge you can feel with a fingertip.
• It is small enough to sit fully inside your dog's mouth.
• Your dog has started biting off chunks rather than wearing the surface down.
• There is a chip missing from the piece, or your dog is suddenly avoiding one side of their mouth.

That last one matters more than people expect. A dog who keeps a chew in their mouth and walks away, or who starts chewing lopsided, is telling you something about their teeth. Take the chew, look, and call the vet if the behaviour keeps happening.

Rotation beats the perfect chew

There is no single chew that is right for every dog forever. The setup that works for most households is a rotation: something hard for the long sessions, something softer and higher-value for a short one, and a rest day in between so a jaw is not grinding all week.

If you are unsure which end of the hardness scale your dog belongs on, buy the smaller version of the softer option and watch them use it. Their behaviour will tell you what to buy next, and you will have spent a few dollars instead of learned it the expensive way.