Packs chosen and tested for barrier, compatibility, shelf life and recyclability — so the food stays safe, fresh and true to its label until the last serving.
From pilot batch to retail shelf — through Guires PNL and our network of GMP-certified partner manufacturers.
Bags, pouches, cans, trays, tubs and sachets matched to product and process.
Oxygen and moisture barrier set from the product’s shelf-life needs.
Migration and interaction checks for fats, acids and actives.
Real-time and accelerated studies in the pack you will sell.
Packs checked for retort, hot-fill and high-pressure processing.
Mono-material and recyclable formats assessed against performance.
Fat-rich kibble and treats go rancid when oxygen and light get in.
Sensitive vitamins such as thiamine keep falling during storage.
Can linings and some plastics can transfer substances into food.
Recyclable materials must still protect the product for its full shelf life.
Product, process and shelf-life target.
Formats and materials shortlisted.
Barrier and compatibility checks.
Shelf-life study in final pack.
Best-before date set.
Packaging specification issued.
Peer-reviewed findings that shape how we design and interpret this work.
Canned cat food lost 17.8% of added thiamine over six months; thiamine deficiency outbreaks have been linked to low-thiamine cat food.
Thiamine measured in finished product and during storage, not only assumed from the formula.
Peer-reviewed studies now report bisphenols from can linings, PFAS (highest in fish-based foods) and microplastics in commercial pet foods.
We track these findings and advise when testing is warranted for your ingredients and packaging.
Vitamins A, D, E, K, C and folic acid are the least stable in extrusion; one study lost about 26% of vitamin A at preconditioning and about 34% after extrusion and drying.
Vitamin overages are set from published retention data for your process and confirmed by analysing the finished product.
Each application has its own page with the evidence, the actives and the claim boundaries we work within.
A healthy skin barrier and a glossy coat, driven by the right balance of omega-6 and omega-3 fatty acids, protein quality and key micronutrients.
Firm stools, comfortable digestion and a balanced gut microbiome.
Helping pets stay healthy for longer.
Lighter, more satisfying diets that help pets reach and keep a healthy weight.
Every ingredient we choose for packaging development & testing is assessed for nutrient contribution, digestibility, processing behaviour, palatability and the rules in your market — and sourced to your specification.
Regulation updates, the latest research, recalls and market trends that shape pet food packaging — written by our formulation, testing and regulatory teams.
We specify and test packaging; supply is arranged through qualified packaging suppliers.
Often, yes — we test whether a recyclable format gives enough barrier for your product’s shelf life.
Barrier and migration tests run through qualified partner laboratories; shelf-life studies through Guires Analytical Lab and partners.
Tell us your product, your question and your market — our scientists will come back with a study design and next steps.
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 →