Product Development · Dry Pet Food

Dry pet food, engineered from the recipe up.

Complete and complementary kibble formulated for the species and life stage first, then optimised for kibble integrity, palatability, shelf life and cost.

Guires Pet Nutrition Lab

Dry Pet Food Development from Guires PNL

Dry food is the largest pet food category and the hardest to get right on paper alone. The recipe decides not only nutrient levels but how the kibble expands, holds its shape, takes its fat coating and stays fresh — so formulation and processing have to be designed together.

We formulate complete and complementary kibble to the nutrient profile your market requires, calculate energy from analysed values, and prove the recipe in pilot extrusion with our manufacturing partners before it is handed over to your manufacturer.

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What We Develop

Dry Pet Food formats.

Every format starts from the species, the life stage and the nutritional objective.

Complete diets

Adult, puppy/kitten, senior and all-life-stage recipes formulated to a recognised nutrient profile.

High-protein & grain-free

Concepts with tighter amino-acid and starch balance, so expansion and kibble strength still work.

Plant-inclusive & novel protein

Insect, plant and alternative proteins assessed for digestibility, amino acids and palatability.

Functional kibble

Digestive, skin, joint, weight and urinary concepts with actives set at evidence-based levels.

Breed & size formats

Kibble size, shape and density matched to small, medium and large breeds.

Reformulation & cost optimisation

Ingredient substitution and cost reduction without moving outside nutrient targets.

Technical Challenges

What we solve for.

01

Starch and expansion

Starch level and type drive kibble expansion, density and texture — so the recipe and the extruder settings are designed together.

02

Fat coating and oxidation

Coated fat and palatants must be protected from oxidation with the right antioxidant system and packaging.

03

Vitamin losses in extrusion

Heat and moisture reduce sensitive vitamins, so overages are planned from the start and confirmed by analysis.

04

Post-process contamination

Dry food is not sterile after coating and cooling; hygiene and testing protect the finished product.

How We Work

From brief to transfer.

Brief

Species, life stage, market, price point and positioning.

Formulate

Nutrient targets, energy calculation and costing.

Bench & pilot extrusion

Kibble prototypes through our manufacturing partners.

Test

Proximate, minerals, vitamins, water activity and microbiology.

Palatability

Acceptance or preference tests with partner panels.

Transfer

Specification and process sheet for your manufacturer.

Evidence

The science behind our approach.

Peer-reviewed findings that shape how we develop this format.

Peer-reviewed evidenceDry Pet Food · 1 source

Recontamination after the kill step

Salmonella stayed detectable on dry pet food for 19 months, so hygiene after extrusion matters as much as the cook.
What we do

Coating, cooling and packing hygiene are part of every dry-food specification.

  1. StudyLambertini 2016, Food Microbiol
Peer-reviewed evidenceDry Pet Food · 1 source

Mycotoxins rarely occur alone

A 2026 survey of 126 dog and cat foods found fumonisin B1 in over 94% and more than one mycotoxin in over 92% of products.
What we do

Cereal and by-product suppliers are approved with mycotoxin testing.

  1. StudyGuo 2026, Mycotoxin Research
Peer-reviewed evidenceDry Pet Food · 1 source

Labels are not always accurate

In a 2026 study, 82.3% of 96 products met their declared guaranteed analysis — so nearly 1 in 5 did not.
What we do

Every prototype is analysed against its declared values before launch.

  1. StudyCho 2026, Animals
Deliverables

What you take away.

  • Costed recipe with nutrient report against your target profile
  • Kibble specification: size, density, moisture, water activity
  • Pilot samples and analytical results
  • Process notes for extrusion, coating and drying
  • Label-ready nutrient data for your market

Ingredient science for dry pet food

Every ingredient we choose for dry pet food is assessed for nutrient contribution, digestibility, processing behaviour, palatability and the rules in your market — and sourced to your specification.

Ingredientsimages/pd-novel-proteins.jpg · 1600×1200
Insightsimages/article-3.jpg · 1600×1200

Guires PNL quality, compliance and safety

Every project at Guires Pet Nutrition Lab runs inside an ISO 9001:2015 certified quality system and FSSAI-licensed operations, with documented methods, calibrated instruments, traceable raw materials and reviewed reports — so the results behind your product can be checked and defended.

Quality
FAQs

Common questions.

Can you work with my existing manufacturer?

Yes. We formulate to your manufacturer’s equipment and ingredient list, and hand over a specification they can run.

Do you develop grain-free recipes?

Yes, with attention to amino-acid balance and the open scientific discussion on diet and canine DCM, which our scientists follow closely.

How is energy declared?

Energy is calculated from analysed values using the method each market requires.

Ready to develop your dry pet food product?

Tell us the species, the format and the market — we will come back with an approach and next steps.

FEDIAFAAFCO

Every Guires PNL product is formulated to comply with the FEDIAF Nutritional Guidelines and the AAFCO Dog and Cat Food Nutrient Profiles. Neither body issues certificates to manufacturers, so compliance is verified independently against their published standards — and every product comes with a complete documentation package for regulatory submissions in the EU, US, Australia and Asian markets.

How we verify compliance →
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