While cleaning up after our dogs isn’t the most glamorous part of the job, it’s a necessary one. What many pet owners might not realise is that the type of poo bags we use can have a big environmental impact. As conversations around sustainability grow, so do terms like biodegradable and compostable. But what do they actually mean, and why should dog owners care?

What’s the difference between biodegradable and compostable poo bags?

At a glance, the two terms may sound similar, and many people use them interchangeably. However, there are key differences in how these materials break down and what they leave behind.

Biodegradable poo bags are made from materials that will break down eventually, but the process isn’t always quick or clean. These bags often contain petroleum-based plastics with additives that help them fragment. The problem is they may only break down into smaller plastic pieces (microplastics), especially in landfill conditions where oxygen and sunlight are limited. So, while they may be marketed as greener than traditional plastic, they’re not always the best choice.

Compostable poo bags, on the other hand, are made from natural plant-based materials, such as cornstarch or PLA (polylactic acid), which break down completely into non-toxic components like water, carbon dioxide, and biomass. They’re designed to decompose in industrial composting facilities or under suitable conditions in home compost bins. In other words, compostable bags return to nature, leaving no harmful residues (not to be used on food crops).

Why should dog owners care?

The UK’s dog population generates an estimated 900 tonnes of poo every day. If we wrap all that waste in single-use plastic or slow-degrading bags, we’re significantly adding to the plastic pollution crisis. By choosing truly compostable bags, dog owners can:

Reduce their plastic footprint
Support a circular economy
Align their pet's routine with eco-conscious values

For buyers who care about the planet, understanding the materials in their everyday products, even something as simple as a poo bag, is crucial. And the more we demand sustainable alternatives, the more brands will step up.

The truth about incineration: why ash matters

While many assume poo bags go to landfill or compost, the reality is different. Most dog waste bags, regardless of material, are collected as general waste and incinerated. This makes the bag’s composition even more important.

DIRTBAG poo bags are designed with this in mind. They produce up to 80% less ash when incinerated compared to standard plastic bags. So, even when composting isn’t an option, DIRTBAG leaves a smaller environmental footprint.

Introducing DIRTBAG: the smart choice for sustainable pet parents

At Simply2 Pet Products, we’re always looking for better ways to care for pets and the planet. That’s why we’re proud to launch our newest brand: DIRTBAG.

DIRTBAG poo bags are 100% compostable, certified to European standards (EN 13432), and made from renewable, plant-based materials. Unlike many so-called green bags that linger in landfills, DIRTBAGs break down naturally and completely, even in a well-managed garden compost heap. Each pack of DIRTBAGs is:

Plastic-free and petroleum-free
Super strong and leak-resistant
Easy to separate and tie
Printed using water-based inks

We’ve also ensured the roll cores and packaging are fully recyclable – no hidden nasties here!

How DIRTBAG is making a difference

DIRTBAG is more than just a poo bag. It’s a step towards cleaner walks, less guilt, and a more planet-friendly pet routine. We know dog owners want to do the right thing, and now they’ve got an easy way to do it. For every box of DIRTBAGs sold, we donate to JAAN (Jakarta Animal Aid Network) to support sea turtle conservation.

We’re also partnering with independent pet shops to help customers switch to sustainable products. DIRTBAG proves that small swaps can lead to big change.

The bottom line

Understanding the difference between biodegradable and compostable poo bags isn’t just eco-jargon, it’s key to making better choices. If you want to ditch the plastic and walk the talk on sustainability, DIRTBAG has your back (and your dog’s behind). Because cleaning up after your dog shouldn't cost the Earth.

For more information on DIRTBAG compostable poo bags, visit simply2pets.com/dirtbag