Frozen or Freeze-Dried, comes in the form of raw or cooked (not processed). The idea is to skip the processing stage traditional dry/wet dog food goes through. This causes less destruction of the nutritional integrity. To compensate for the short shelf life, products are Frozen or Freeze Dried.
Dehydrated, comes in the form of raw and cooked. Products are usually air dried to reduce moisture to the level where bacterial growths are inhibited. The appearance is very similar to dry kibbles. The typical feeding methods include adding warm water before serving.
Fresh or Refrigerated, produced through pasteurization of fresh ingredients. Products are lightly cooked and then quickly sealed in a vacuum package. Then, it is refrigerated until the time it is served. This type of dog food is extremely vulnerable to spoilage if not kept at a cool temperature and have a shelf life of 2-4 month unopened.
Homemade Diet often comes in a bucket or tupperware-like package. Commonly thought to be a diet owners create themselves. However, recently many small companies has begun to home cook dog dishes and then sell them through specialty stores or over the internet.

Most store-bought pet food comes in either dry form, also known as kibble, or wet canned form. Dry food contains 6-10% moisture by volume, as compared to up to 78% in canned food. Semi-moist foods have a moisture content of 25-35%. Pet owners often prefer dry food due to the convenience and price. Besides usually being significantly cheaper, dry pet food can also be left out for the animal to eat at will over the course of several days; whereas, canned food spoils or becomes unappetizing after several hours. On the other hand, canned food has a longer shelf life than most dry food.


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