What "Gently Cooked" Actually Means vs Raw or Kibble (Myths Edition)
At a glance
- Gently cooked dog food is cooked at low temperatures, typically below 100°C, which kills harmful bacteria while retaining more nutrients than high-heat processing.
- Kibble is extruded at temperatures between 120°C and 180°C, a process that destroys some heat-sensitive vitamins and requires them to be sprayed back on afterwards.
- Raw dog food carries a documented risk of Salmonella and E. coli contamination, with UK studies finding pathogens in a meaningful proportion of raw diets tested.
- Gently cooked food is not the same as wet or tinned food, which is typically cooked at much higher temperatures for longer, under pressure, to achieve a long shelf life.
- Marleybones uses a method called Pantry Fresh, where raw ingredients are sealed into the pack and slow-cooked inside it, avoiding the need for freezing or preservatives.
What does "gently cooked" actually mean for dog food?
Gently cooked means the food is cooked at a low enough temperature, usually under 100°C, to kill dangerous bacteria without breaking down the nutrients and proteins the way high-heat processing does. It's a middle ground. Raw feeding skips heat entirely and relies on the food staying uncontaminated. Kibble uses intense heat and pressure, called extrusion, which changes the structure of the food significantly. Gentle cooking aims to get the safety benefits of cooking without losing the nutritional quality that heavy processing sacrifices.
The confusion around this term exists because plenty of brands use "gently cooked" loosely, without any standard definition attached to it. There's no legal threshold in the UK for what qualifies. That's why it matters to look at the actual process, not just the label. Fresh dog food covers a wide range of preparation methods, and gentle cooking is just one of them, sitting distinctly apart from raw and from ultra-processed kibble.
How is gently cooked food different from raw feeding?
The core difference is heat. Gently cooked food is heated enough to kill pathogens like Salmonella, Listeria, and E. coli. Raw food is not heated at all, so any bacteria present in the meat stays present in the bowl. A 2018 study published in Vet Record tested raw dog foods sold in the UK and found Salmonella in 7.1% of samples, plus E. coli in the majority of samples tested. Cooking, even gently, removes that risk almost entirely.
Nutritionally, the gap is smaller than people assume. Raw feeding advocates argue that any cooking destroys nutrients, but low-temperature cooking preserves the majority of protein value and most vitamins, particularly compared with high-heat extrusion. The bigger practical difference tends to be convenience and safety, not nutrition. Raw food also needs to be frozen and handled with strict hygiene, including separate chopping boards and thorough handwashing, to reduce cross-contamination risk to humans in the household, especially children, elderly people, or anyone immunocompromised.
| Factor | Gently cooked | Raw | Kibble |
|---|---|---|---|
| Cooking temperature | Below 100°C | None | 120°C to 180°C |
| Pathogen risk | Very low | Documented risk (Salmonella, E. coli) | Very low |
| Storage | Fridge, freezer, or shelf-stable depending on method | Frozen | Room temperature |
| Nutrient retention | High | Highest theoretically, but safety trade-off | Lower, vitamins often re-added post-cooking |
| Moisture content | High | High | Low, typically under 12% |
How does gently cooked food compare to kibble nutritionally?
Gently cooked food retains more natural moisture and more heat-sensitive nutrients than kibble, because it isn't subjected to the same extreme temperatures. Kibble production uses a process called extrusion, where ingredients are cooked under high heat and pressure, then forced through a machine and dried. This process is efficient and shelf-stable, but it degrades certain vitamins, which is why most kibble has synthetic vitamins sprayed on after cooking to meet nutritional standards. Gently cooked food doesn't need this correction because fewer nutrients are lost in the first place.
Moisture content is another major difference. Kibble typically contains under 12% moisture, while gently cooked and raw foods sit much closer to the natural moisture content of fresh meat, often 60% to 80%. This matters for hydration and can matter for dogs prone to urinary or kidney issues, though it isn't a substitute for a dog always having fresh water available. The processing differences between fresh and kibble go well beyond moisture, extending into ingredient quality and how recognisable the ingredients remain after cooking.
What are the biggest myths about gently cooked dog food?
The most common myth is that gently cooked food is nutritionally inferior to raw. This isn't supported by the evidence. Low-temperature cooking preserves the majority of protein structure and most vitamins, and it eliminates a documented bacterial risk that raw feeding carries. The trade-off is minor nutrient loss for a significant safety gain, not a downgrade across the board.
A second myth is that all fresh food is the same thing. It isn't. Fresh-frozen food is prepared and then frozen to preserve it, requiring freezer space and thawing time. Marleybones instead uses a method called Pantry Fresh, where raw ingredients are sealed into the pack and slow-cooked in-pack, making it shelf-stable without freezing or preservatives. Understanding the difference between fresh-frozen and pantry-fresh formats helps explain why storage and shelf life vary so much between fresh food brands.
A third myth is that gently cooked food and wet or tinned food are interchangeable. They aren't. Tinned food is typically retorted, meaning it's cooked at high temperature under pressure inside a sealed can to achieve years of shelf life. That process is considerably harsher than gentle cooking and results in more nutrient degradation.
If a dog shows persistent digestive upset, vomiting, or a dramatic change in appetite after switching food type, a vet should be consulted rather than assuming the food format is automatically to blame.
Which cooking method is best for a dog's digestion?
Gently cooked food is generally easier to digest than kibble because cooking partially breaks down proteins and starches before they reach the dog's gut, reducing the digestive workload. Raw food is also easy to digest for many dogs, but the bacterial risk means the digestive benefit has to be weighed against the safety trade-off. Kibble requires more enzymatic work to break down, partly due to its lower moisture and higher processing.
Recipes built around named meat as the primary ingredient, alongside functional ingredients like chicory root, tend to support digestion further. Chicory root contains a fibre called inulin that feeds beneficial gut bacteria. Marleybones includes chicory root, along with quinoa, chia seeds, hemp seeds, and linseeds, across its four recipes: Boss Beef, Chic Chicken, Lush Lamb, and Sassy Salmon. Every dog is different, and building a personalised feeding and health plan tailored to age, size, and health requirements gives a clearer picture than a one-size-fits-all recommendation. For dogs transitioning from kibble, browsing the full range of gently cooked meals makes it easier to find a recipe that suits a specific dog's needs.
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FAQs
Is gently cooked dog food the same as raw dog food?
No. Gently cooked food is heated to a low temperature to kill bacteria, while raw food receives no heat treatment at all. This makes gently cooked food significantly lower risk in terms of pathogens like Salmonella.
Does cooking destroy the nutrients in dog food?
High-heat cooking destroys more nutrients than low-temperature cooking. Gentle cooking below 100°C preserves the majority of protein value and most vitamins, unlike extrusion, which requires vitamins to be added back afterwards.
Is gently cooked food safe for puppies?
Yes, provided the recipe is complete and balanced for all life stages. FEDIAF compliance is the UK and EU standard to check for, as it confirms the food meets the nutritional needs of puppies, adults, and seniors.
Why does kibble need added vitamins but gently cooked food doesn't?
Kibble is extruded at 120°C to 180°C, which destroys a portion of naturally occurring vitamins. Manufacturers spray synthetic vitamins back onto the kibble after cooking to meet nutritional minimums. Gentle cooking retains more of these nutrients naturally.
Can gently cooked dog food be stored without a freezer?
It depends on the method. Some gently cooked foods require freezing to stay safe. Marleybones uses a shelf-stable Pantry Fresh format, where the pack is sealed and slow-cooked in-pack, so no freezer is needed until it's opened.
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