It is the least glamorous purchase in dog ownership and the one you make most often. A few things genuinely matter.
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The specifications that count
1. Thickness. The only specification that really matters. A thin bag that splits is worse than useless. Look for a stated thickness, typically measured in microns — around 15 microns and above is reasonable.
2. Size. Big enough for a large dog, with room to tie a knot. Bags sized for a Chihuahua are a false economy for a Labrador.
3. Opening easily. In cold weather, in the rain, in gloves, with a lead in one hand. Bags that weld shut at the perforation are a daily irritation.
4. Leak-proof. Not all are.
5. Scent. Unscented or lightly scented. Heavily perfumed bags are unpleasant to carry and the fragrance does not mask much anyway.
Earth Rated Dog Poop Bags
Thick enough not to fail, which is the only test that matters, and available unscented. Buy in bulk and distribute rolls to every coat pocket, the car, the boot and the lead — running out is the most predictable problem in dog ownership.
The biodegradable question, honestly
The labelling in this category is genuinely confusing, and much of it is misleading.
“Biodegradable” has no strict legal definition in most jurisdictions. Almost anything biodegrades eventually. A bag labelled biodegradable may still be conventional plastic with an additive, and in landfill conditions — anaerobic, with no light — it may break down no faster than ordinary plastic.
“Oxo-degradable” or “oxo-biodegradable” plastics fragment into microplastics rather than genuinely decomposing. Several jurisdictions have moved to restrict them.
“Compostable” means something more specific, and there are standards — EN 13432 and ASTM D6400 are the common ones. A bag certified to these will break down in an industrial composting facility.
The catch: dog waste is not accepted by most municipal composting schemes, for public health reasons. So a certified compostable bag full of dog faeces generally goes into general waste, where it behaves much like any other bag.
“Home compostable” is a further and stricter standard, and it is genuinely meaningful for people composting dog waste in a dedicated home system — which is a real option, though it needs a separate composter that is never used for food-growing soil.
The honest summary: if your local authority does not compost dog waste, the environmental difference between bag types is smaller than the marketing suggests, and a bag that does not split matters more than the label. If you do have a home system or a local scheme, buy a certified home-compostable bag and use it properly.
Holders
A dispenser that clips to the lead means you always have bags. This sounds trivial and it removes the most common failure mode.
Look for: one that fits the roll you actually buy, a clip that does not fall off, and a lid that stays shut.
Carrier holders — a clip or a hands-free container for the used bag — are worth considering for long walks where there is no bin for a mile, and they prevent the widespread and antisocial habit of bagging waste and leaving it on a path.
What to do with it
- Bin it. Any public bin will do in most places — the practice of requiring dedicated dog bins is long gone in most areas
- Take it home if there is no bin. That is the deal
- Never bag it and leave it. A bagged deposit hanging in a hedge is worse than an unbagged one, because it will not break down. This is the single most-complained-about behaviour in the countryside
- Never flush it unless local guidance specifically allows it — most sewerage systems are not designed for it
- Do not put it in a garden compost used for growing food. Dog waste can contain parasites that survive composting temperatures
Why it matters beyond tidiness
Toxocara. Roundworm eggs in dog faeces can infect people, particularly children playing in contaminated soil. The eggs become infective after a couple of weeks and persist in soil for years. Picking up promptly — before the eggs mature — genuinely interrupts that.
Giardia, hookworm, whipworm and several bacterial organisms also spread through faeces.
Water quality. Dog waste left near watercourses contributes real nutrient and bacterial loading.
Livestock. Some parasites carried by dogs cause serious disease in sheep and cattle, which is why farmers care about it as much as they do.
And while you are down there
The daily inspection nobody plans but everybody does. It is genuinely useful information.
Normal: firm, segmented, easy to pick up, brown, and consistent day to day.
Worth noting:
- Persistently soft or loose — diet, parasites, stress, or an underlying condition
- Very hard and dry — dehydration or insufficient fibre
- Mucus — large bowel irritation
- Fresh red blood — usually large bowel; worth a call
- Black and tarry — digested blood from higher up; worth a call today
- White or grey — possible bile or pancreatic problem
- Visible worms or rice-like segments — worming needed
- Grass, plastic, fabric, or objects — scavenging, and a reason to work on “leave it”
- Volume out of proportion to what goes in — poor digestibility or malabsorption
A change that persists beyond a few days is worth mentioning to your vet. A photograph is more useful than a description, and vets are entirely used to being shown one.
