Kibble used to be the default. Now the UK pet food aisle, and a good chunk of your Instagram feed, is full of brands promising something "better": fresh, frozen, raw, cooked, air-dried. It's a lot of language for what's ultimately a fairly simple question: what's actually going in the bowl, and how does it get there?

Here's a straightforward look at the main categories you'll come across, what separates them, and what's worth checking regardless of which one you're considering.

Ambient (cooked, shelf-stable)

Ambient wet food is cooked and sealed in trays or pouches, making it safely shelf-stable at room temperature until opened. There's no delivery schedule to plan around, no fridge or freezer space to sacrifice, and no defrosting before dinner. It simply sits in the cupboard until your dog is ready to eat.

This is where WITHIN comes into its own.

Our food is cooked and sealed using the same type of process used to make baby food, with carefully controlled time and temperature to ensure it is safe and stable without needing refrigeration or freezing.

WITHIN is commercially sterilised at a higher temperature than some other gently cooked ambient foods, giving you the reassurance of a highly controlled, food-safe product while keeping mealtimes incredibly convenient.

And convenience doesn't mean compromising on what's inside. Our recipes contain 70% named meat or fish, are developed with expert pet nutritionists, vet approved, and complete and balanced to FEDIAF guidelines.

The result? Freshly prepared ingredients with cupboard convenience. No freezer. No defrosting. No waiting for chilled deliveries. Just complete, nutritious food ready whenever your dog is.

For us, ambient isn't the compromise between fresh and convenient. It's how you get both.

Fresh (chilled)

This is what most people picture when they hear "fresh dog food": cooked meals delivered cold, with a shorter shelf life, that go straight in the fridge from the moment they arrive. Brands like Different Dog work this way, delivering portioned meals direct to your door on a subscription cycle.

The appeal is minimally processed, easy to see what's in it, but the trade-off is fridge space and a delivery schedule built around use-by dates.

Fresh (ambient)

This category sits in an odd spot: brands like Years Dog Food here market themselves as "fresh dog food," and the recipes genuinely are freshly prepared and cooked, but the finished product is shelf-stable at room temperature, not chilled. Meals are cooked, then sealed using a steam or retort process that lets them sit safely in a cupboard until opened, at which point they're treated like any other opened food and go in the fridge.

Functionally, this is the same storage mechanism as ambient wet food, no fridge or freezer commitment until the pack is opened, no delivery slot to plan around. The difference from the Ambient category above is really just branding: these products are marketed under the "fresh" banner, built around messaging like freshly prepared, chef cooked, or delivered to your door, even though the format itself doesn't require any of the cold-chain handling that "fresh" usually implies.

The trade-off, if there is one, is entirely about expectation rather than practicality: a customer choosing a fresh food brand for the cold-chain reassurance of "just delivered, straight in the fridge" might be surprised to find a cupboard-stable pack on their doorstep instead. It's not a downside of the format itself, cupboard-stable is genuinely convenient, it's just worth knowing that "fresh" here describes the recipe and preparation, not the way the finished product needs to be stored.

Frozen (cooked)

Frozen cooked meals work on the same principle, cooked recipes with high meat content, but frozen for a longer shelf life and thawed in batches before feeding. Butternut Box is probably the best-known name in this space in the UK, delivering frozen pouches sized to your dog's weight.

The trade-off with frozen is logistical rather than nutritional: you need freezer space and a thawing routine, in exchange for a longer shelf life between deliveries.

Raw

Raw feeding uses uncooked meat, bone and offal, usually supplied frozen. Brands such as Nutriment, Paleo Ridge and Bella & Duke operate in this space.

Raw feeding has passionate advocates, but because the meat is uncooked, it can carry potentially harmful bacteria such as Salmonella, E. coli and Listeria. This means careful storage, preparation and cleaning are particularly important, especially in homes with young children, older people or anyone with a weakened immune system.

Cooked ambient food, by comparison, undergoes a controlled heat-treatment process designed to destroy harmful microorganisms, making it a lower-risk and more convenient option to handle and store at home.

If you're considering raw, it's worth discussing it with your vet, particularly for puppies, senior dogs or dogs with existing health conditions.

What to check, whichever category you're comparing

Regardless of ambient, fresh, frozen or raw, the same three questions are worth asking of any brand:

1. What meat, and how much?
   Look for named meat or fish and an actual percentage, not just "meat and animal derivatives." WITHIN's wet recipes are 70% named meat or fish.
   
2. Where and how is it made?
   UK manufacturing under BRCCGS certification means independently audited hygiene and traceability standards, not just a claim on packaging. Within is manufactured in the UK throughout, with full batch traceability.
   
3. What does "vet approved" actually mean for this brand?
   A defined framework is worth more than a one-line endorsement. Every Within recipe goes through an 11-point framework reviewed by Dr Jason Aldiss BEM BVSc MRCVS, covering sourcing, manufacturing, testing and labelling claims.
   

The part that's easy to miss: gut health

Meat content gets most of the attention, but it's not the whole picture. WITHIN builds every recipe around FormulaBiotics™, our blend of prebiotics, postbiotics, antioxidants, vitamins and minerals designed to support your dog's gut microbiome directly, not just the quality of what's going in.

If your dog has specific needs alongside their everyday food, our Joint Care chews use Kynosil®, a clinically studied ingredient for joint support, and our Dental chews use EpiCor®, researched for dental and immune health.

Switching between categories

However you're feeding now, moving to a new food, ambient, fresh, frozen or raw, is worth doing gradually:

Transition over 7 to 10 days, mixing increasing amounts of the new food with the old.

Check the feeding guide, not the pack size. Ambient, fresh, frozen and raw food are all more calorie-dense than kibble, so portions will look smaller than you're used to.

Watch your dog, not the label. Coat, energy and stool quality over the first few weeks tell you more than any ingredients list.

Finding the right fit

Ambient, fresh, frozen and raw all sit ahead of ultra-processed kibble on most owners' radar, but they're genuinely different categories with different practicalities. The right one comes down to your dog, your fridge and freezer space, and how hands-on you want feeding to be.

If cooked, high-meat wet food without the fridge or freezer commitment fits, you can see the full range of wet food recipes, dry food, and supplements, or start from the homepage.