What you'll need to make a taste deterrent is rather simple and the ingredients are also natural. If you're concerned that the ingredients are bad for your pup, don't be, because they're natural and won't hurt her.

The smell and taste of bitter apple spray discourages dogs from chewing on your stuff, but frequently buying the product at pet stores can be pricy. If the non-toxic spray keeps your pooch from chewing that copy of “Brothers Karamazov” you just bought or your favorite pair of boots, consider making your own at a fraction of the cost.

Empty Spray Bottle
Purchase an empty spray bottle at a dollar or discount shop.

Apple Cider Vinegar
Apple cider vinegar is the base for most bitter apple sprays. You can spray it on items you don't want your dog to chew on without damaging them.

Lemon Juice
If you don't have apple cider vinegar handy, lemon juice works, too. Pour 2 cups of lemon juice and 1 cup of white vinegar into the spray bottle. Shake well, and spray.

Spray Away
Reapply the deterrent spray to your things every week.

Drive the Message Home
Your clever pooch is learning to not chew on your things because they taste bad. Reinforce his learning when you catch him in the act. Using the deterrent spray in tandem with training is an effective way to get your pooch to not chew up all your worldly possessions.

Warnings and Considerations
Never spray repellent — even non-toxic homemade deterrent spray — into your dog's eyes. Consider, too, that all repellants are not created equal, and bitter apple spray does not discourage all dogs from chewing.

Additionally, some dogs become tolerant to the taste.

Apple cider vinegar should do the trick, but don't forget the value of training while applying the deterrent simultaneously (which is what The Daily Puppy suggests too). Even though you're keeping her away from the furniture does not mean training won't help too.

Use positive reinforcement and reward her when she's not chewing on your furniture — hopefully combined with a deterrent you'll be on your way to getting your nice home back. 😉