Preheat the oven to 200°F. Line a baking sheet with parchment paper and place a cooling rack over the parchment paper. Spray lightly with nonstick cooking spray.

Lay out 2 overlapping pieces of wax paper on your work surface and place the ground beef in the center. Wear disposable nitrile gloves for handling raw meat.

Mix the water into the ground beef to ensure even moisture distribution before shaping.

Shape the ground beef into a rectangle and cover with 2 more overlapped pieces of wax paper.

Use a rolling pin to roll the ground beef very thin, covering the entire cooling rack.

Use a pizza cutter to slice strips approximately 2 inches wide and 5 inches long without separating them.

Place the upside-down sprayed cooling rack on top of the beef and flip the assembly so the beef is on the rack.

Score shallow diamond patterns on top of the beef with a knife.

Bake in the oven for 4 hours until dark brown and dry to the touch.

Allow to cool completely before breaking or cutting into smaller pieces suitable for your dog's size and dietary needs.