Harringtons dog food in 15kg bags
Harringtons Adult Dog Turkey is the recipe that comes in a genuine 15kg bag, sitting alongside a smaller 4kg option in the same recipe — most of the rest of the range runs in 12kg or 14kg large bags instead. Buying the bigger bag suits a multi-dog household or a large dog getting through food quickly, provided you can store it properly.
What actually comes in 15kg
Of the Harringtons range we stock, Adult Dog Turkey is the recipe available in a 15kg bag, alongside a 4kg option for households that do not want to commit to the larger size straight away. Other large bags in the range, such as the grain-free Superfoods Chicken and Salmon with Vegetables recipes, run at 12kg, and the large-breed Lamb and Chicken recipes come in 14kg bags — close to 15kg but not quite it, which is worth knowing if the exact bag size matters to you.
If your dog does well on a different recipe and you are hoping to buy it in 15kg specifically, it is worth checking the bag size on that exact product rather than assuming the whole range shares one large-bag size.
Why buy the bigger bag
A larger bag is almost always cheaper per kilo than the same food in smaller bags, which matters for a large dog or a multi-dog household getting through food quickly. The trade-off is storage — 15kg of kibble needs a dry, airtight container to stay fresh once opened, since the original bag alone does not keep air and moisture out as well once it has been opened and re-folded repeatedly.
Buying large only makes sense if you will get through the bag within a reasonable time. Kibble does lose some nutritional quality and palatability as it ages, even unopened, so a 15kg bag sitting for months in a single-dog household is not necessarily the saving it looks like on paper.
This range
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.

Forthglade Cold Pressed Natural Turkey
Cold-pressed turkey kibble for dogs from 2 months, soft enough to mix with water for young pups
£45.99

Forthglade Cold Pressed Grain Free Salmon
Cold-pressed grain-free dry food for dogs, built on fresh and dried salmon
From£16.99

Forthglade Cold Pressed Grain Free Duck
Cold-pressed grain-free duck food with fruit and botanicals, in two bag sizes
From£16.99

Forthglade Cold Pressed Grain Free Chicken
Cold-pressed grain-free chicken food with fruit and botanicals, in three bag sizes
From£16.99

Forthglade Complete Meal Lightly Baked Turkey
A lightly baked complete dry food, 50% turkey, for adult dogs of any breed
From£12.49

Forthglade Complete Meal Lightly Baked Chicken
A grain-free complete dry food for adult dogs, lightly baked and built on 50% chicken
From£12.49

Forthglade Cold Pressed Small Dog Turkey
Cold-pressed grain-free dry food for small dogs and puppies, built on turkey
£16.99

Forthglade Complete Meal Lightly Baked Lamb
A lightly baked complete dry food, 50% lamb, for adult dogs of any breed
From£12.49

Forthglade Cold Pressed Grain Free Turkey
Grain-free cold-pressed turkey kibble for dogs, gentle on sensitive stomachs
£69.69

Harringtons Puppy Turkey & Rice
Complete turkey puppy food with 30% protein and feeding bands by adult weight
£6.49

Harringtons Adult Dog Turkey Veg
Complete dry food for adult dogs with turkey, chicken and salmon oil, 21% protein
From£3.39

Harringtons Adult Dog Salmon & Potato
Complete salmon and potato dry dog food with 21% protein in a 1.7KG bag
£6.25
Common questions
- How long does a 15kg bag of dog food last?
- This depends entirely on your dog's size and how much you feed daily — a large, active dog might get through 15kg in a matter of weeks, while a small dog could take several months. Work it out from the feeding guide on the bag and your dog's daily amount before committing to the larger size.
- How should I store a large bag of dog food once opened?
- Keep it in a dry, airtight container rather than the original bag alone, away from heat and direct sunlight, and try to use it within the timeframe the manufacturer suggests once opened. This keeps the kibble fresher and helps it stay appealing to your dog.
- Is it cheaper to buy dog food in a 15kg bag?
- Usually yes, per kilo, compared to the same recipe in a smaller bag. It is only a genuine saving if you get through the food within a reasonable time before it starts to lose freshness, so weigh the saving against your dog's actual daily amount.
Related
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.