ZIWI Peak uses air drying technology to seal in the goodness of raw ingredients, without artificial preservatives. This technique provides your dog with a healthy combination of fresh and raw feeding. ZIWI Peak Air-Dried Beef Recipe for Dogs, is a single protein food, suitable for all breeds and life stages. Ideal for dogs with sensitivities, this grain-free recipe is made from free-range, grass fed beef, farmed in New Zealand.