Pet Food Manufacturing: From Kibble to Freeze-Dried Raw

The pet food manufacturing process can take very different paths from raw ingredients to a finished product. Kibble is cooked and shaped through extrusion, canned food is heated after sealing, frozen raw food stays uncooked, and freeze-dried raw food uses freezing and vacuum drying instead of a cooking step.

Those choices shape the food you end up serving, from its texture and storage needs to the way it is prepared. Knowing the basics can help you compare different types of pet food without relying only on the claims made on the package.

Key Takeaways

●     Kibble, canned food, frozen raw food, and freeze-dried raw food are made in different ways.

●     Each process uses heat, moisture, storage, and preparation in different ways.

●     Extrusion and retort processing use heat, while frozen and freeze-dried raw foods skip a cooking step.

●     Terms such as “natural” and “minimally processed” do not tell you exactly how a food was made.

●     Vital Essentials starts with whole-animal, butcher-cut protein and uses carefully managed production, food-safety practices, and E-Beam technology for our raw and freeze-dried foods.

Pet Food Manufacturing Isn’t One Universal Process

Before commercial pet food reaches a bag, can, pouch, or freezer, it moves through several production steps. The details vary by food product, but the process usually includes sourcing ingredients, receiving and storing them, building the recipe, processing the food, checking safety, packaging, and distribution.

Pet food sold in the United States has to meet federal requirements for safety, sanitary production, ingredients, and labeling. The FDA’s pet food manufacturing and regulatory guidance explains the basic rules manufacturers follow.

When comparing foods, four questions can help you understand the process:

1. What ingredients does the company start with?

2. Does the food use heat, freezing, drying, or another production method?

3. How does the company handle food safety?

4. What happens before the food is packaged?

These questions tell you much more about how a food was actually made than a broad claim on the package.

Dog and cat foods may use similar production methods, but the recipes are different. Cats and dogs have different nutritional needs, so food manufacturers have to build recipes for the intended species and life stage.

From Supplier to Production Line

Pet food manufacturing starts before the ingredients reach the production equipment.

Meat and other animal ingredients may arrive fresh, frozen, or chilled. Grains, vitamin and mineral blends, oils, and other ingredients may arrive in bags, larger containers, drums, or refrigerated trucks. Manufacturers check incoming ingredients against their requirements before they move into production.

This overview of how pet food is made shows how those receiving steps fit into the broader manufacturing process.

Manufacturers also track ingredients and finished products through production. Supplier records, lot codes, receiving information, and inventory systems connect finished food back to the ingredients and production run behind it.

Storage needs also differ by ingredient. Fresh and frozen animal proteins need temperature control, while dry ingredients need protection from heat, moisture, pests, and contamination.

At Vital Essentials, our ingredient and sourcing information explains how we use animal proteins, organs, ground bone, oils, vitamins, minerals, and other ingredients across our recipes. We source animal proteins exclusively from USDA-inspected suppliers certified by GFSI and keep ingredients temperature-controlled from harvest through manufacturing and finished-product storage.

Once ingredients are ready, manufacturers weigh and combine them according to the recipe. Vitamins and minerals may be mixed together first so that small amounts can be evenly distributed throughout a larger batch.

Food safety continues throughout production. Depending on the facility and product, manufacturers may use sanitation procedures, testing, ingredient tracking, lot codes, and written food-safety plans.

How Dry Pet Food Uses Extrusion

Most dry kibble is made through extrusion. The term sounds technical, but the process is easier to understand than it sounds.

Dry ingredients are ground and mixed with wet ingredients. Water and steam are added to create a dough-like mixture. Before the mixture enters the extruder, moisture and steam begin the heating process, as shown in this overview of how dry pet food is made.

Inside the extruder, the mixture moves through a heated chamber under pressure. The combination of heat, moisture, pressure, and movement cooks the ingredients and changes the starch so the kibble can hold its shape.

The cooked mixture then passes through a shaped opening called a die. As it comes out, it expands and is cut into individual pieces. The kibble is then dried, cooled, and often coated with fats or flavoring ingredients before packaging.

The amount of heat, moisture, and pressure used during extrusion can change the finished food, including how the starch cooks. Research comparing pet food processing methods looks at how different production methods affect the food, while research on starch in extruded pet foods explains the role starch plays in helping kibble expand and hold its shape.

Manufacturers account for the effects of cooking when developing the recipe, and some ingredients or coatings may be added later in the production process.

This gives dry pet food many of the features pet parents expect, including dry, consistent pieces that store easily in the pantry. Those qualities come from several production steps rather than simply mixing ingredients and baking them.

The Canned and Wet Pet Food Manufacturing Process

Wet food follows a different process.

Manufacturers may start with fresh or frozen meat, broth, water, vitamins, minerals, and ingredients that help create the intended texture. The mixture can be made into a loaf, chunks, shreds, or other forms before it goes into cans, trays, or pouches.

The package is sealed before the main cooking step.

Shelf-stable wet food then goes through retort processing. A retort works much like a large pressure cooker, using controlled heat for a set amount of time.

Manufacturers follow established time and temperature requirements for low-acid canned foods based on the food and its packaging.

This cooking step allows the sealed food to stay shelf-stable until you open it.

Heat and cooking time can also change the food itself. Different heating schedules can change characteristics such as texture and thickness, as shown in research on retort processing in canned cat food.

Manufacturers account for those changes when developing the recipe and cooking process.

Once properly processed and sealed, canned food can stay on the shelf until opened. After opening, follow the package directions for refrigeration and storage.

How Raw and Freeze-Dried Pet Food Is Processed

Raw pet food takes a different path because the animal ingredients stay uncooked.

The ingredients are kept cold, portioned, cut or ground as needed, and blended with the rest of the recipe before packaging or the next production step.

Keeping the food raw means manufacturers use sourcing standards, sanitation, temperature control, pathogen controls, testing, and traceability throughout production.

If you are new to this type of food, our beginner’s guide to raw feeding covers the basics of feeding a commercially prepared raw diet.

Freeze-dried raw food starts with raw food but removes most of its moisture.

First, the food is frozen. It then goes into a vacuum chamber, where low pressure allows the frozen water to turn directly into vapor instead of melting into liquid first. This process is called sublimation.

A second drying stage removes more moisture. Manufacturers also monitor water activity, a measurement that helps them understand how much usable moisture remains in the food during storage. The FDA provides more detail on water activity in food.

Freeze-drying and dehydration are not the same thing. Dehydration generally uses warm moving air, while freeze-drying begins with frozen food and removes moisture under vacuum. That difference affects the finished texture and how the food takes up water again when rehydrated.

Commercial raw food goes through more than freezing or freeze-drying. Sourcing, sanitation, testing, temperature control, and traceability are also part of production.

Our guide to raw food diet safety covers the additional safety controls and handling practices involved with feeding raw.

How Vital Essentials Makes Raw and Freeze-Dried Food

At Vital Essentials, our raw and freeze-dried foods start with whole-animal, butcher-cut protein. Depending on the recipe, that can include muscle meat, organs, ground bone, and fat, along with other ingredients needed to make sure all needs are met throughout the shelf life.

We keep those animal proteins raw instead of cooking them through extrusion or retort processing. For freeze-dried food, we remove moisture at low temperatures while the recipe stays raw.

The Vital Essentials Promise explains how we approach food safety from sourcing through production. We source animal proteins exclusively from USDA-inspected suppliers certified by GFSI, follow documented sanitation and manufacturing practices, and maintain third-party food-safety certifications.

E-Beam technology is the final step in our product safety process, reducing harmful pathogens without cooking the food.

If that approach fits the way you want to feed your pet, explore our raw and freeze-dried dog food or raw and freeze-dried cat food.

The Pet Food Quality Checklist

Manufacturing claims become more useful when you turn them into practical questions.

Use this checklist when comparing foods:

1. Can you tell what the main ingredients are?
   Read the ingredient list and look for clear descriptions instead of relying only on claims on the front of the package.

2. Can you understand how the food was made?
   Look for information about whether it was extruded, cooked after packaging, frozen, dehydrated, or freeze-dried.

3. How does the process use heat and moisture?
   Cooking changes food differently from freezing or drying, so broad claims such as “natural” do not tell you the whole story.

4. What happens before the food is packaged?
   Kibble may receive coatings after extrusion, while raw and dried foods go through their own finishing and packaging steps.

5. Does the food provide the nutrition you need?
   If you are choosing a main diet, check for a nutritional adequacy statement for the right species and life stage. AAFCO’s guide to reading pet food labels shows how nutritional adequacy statements distinguish complete diets from foods meant only for supplemental feeding.

6. Does the company explain how it handles food safety?
   Look for clear information about sourcing, sanitation, testing, traceability, certifications, and how the food is released for sale.

You don’t need behind-the-scenes manufacturing records to compare foods. A company should be able to explain how its food is made and how it handles safety in plain language.

Turn Package Claims Into Real Questions

Pet food labels can tell you plenty, but broad claims do not always explain how the food was made.

“Natural” does not tell you whether a food was extruded, cooked after packaging, frozen, dehydrated, or freeze-dried. “Minimally processed” may suggest less heat or fewer processing steps, but the phrase still does not tell you the complete manufacturing process.

Instead of relying on one claim, look at the ingredients, how the food is made, and what the company tells you about its process.

Kibble, canned food, frozen raw food, and freeze-dried raw food all take different paths from ingredients to finished food. Knowing those differences makes it easier to compare them.

Pet Food Facilities and Manufacturing FAQ

Does “natural” tell you how a pet food was manufactured?

No. “Natural” does not tell you whether a food was extruded, cooked after packaging, dehydrated, frozen, or freeze-dried.

If the manufacturing method affects what you want to feed, look for processing information from the company instead of relying on a single label claim.

Is “raw-coated” kibble the same as raw or freeze-dried food?

No. Raw-coated dry pet food still has a kibble base that goes through a dry-food manufacturing process. A coating made with raw-derived ingredients may be applied afterward.

That makes it different from frozen raw or freeze-dried raw food, where the main recipe itself remains raw.

Is freeze-dried pet food the same as dehydrated pet food?

No. Freeze-drying starts by freezing the food and then removing moisture under vacuum. Dehydration generally uses warm, moving air to remove moisture.

Both methods reduce moisture, but they produce different textures, densities, and results when water is added back.

What does “minimally processed” mean for pet food?

“Minimally processed” generally describes food made with less heat or fewer production steps, but the phrase does not tell you exactly how the food was made.

For raw and freeze-dried foods, look for clear information about where the ingredients come from, how the food is made, and how the company handles safety.