Biodegradable vs Compostable Packaging: What's the Difference?
If you run a takeaway, café, or food business in the UK, you've probably noticed the growing demand for greener packaging. Terms like "biodegradable" and "compostable" appear on products everywhere, and it's easy to assume they mean the same thing. They don't — and understanding the difference can save you money, help you meet regulations, and give your customers the transparency they expect.
In this guide, we'll break down exactly what biodegradable and compostable packaging mean, how they differ in practice, and which option makes the most sense for your business.
What Does Biodegradable Packaging Actually Mean?
Biodegradable packaging is any packaging material that can be broken down by naturally occurring microorganisms such as bacteria and fungi. In theory, most organic materials are biodegradable — even untreated wood or plain paper will eventually decompose.
The catch is in the word "eventually." There is no fixed timeframe for biodegradable materials to break down. A biodegradable plastic bag might take anywhere from a few months to several years, depending on conditions like temperature, moisture, and the presence of microorganisms. In a landfill with limited oxygen, biodegradable items can take just as long as conventional plastics to decompose.
This means that while "biodegradable" sounds environmentally friendly, it doesn't guarantee a product will break down quickly or cleanly. Some biodegradable plastics still leave behind microplastic fragments, which is a growing environmental concern.
What Does Compostable Packaging Mean?
Compostable packaging goes a step further. A compostable product is designed to break down into natural elements — water, carbon dioxide, and nutrient-rich biomass — within a specific timeframe and under specific conditions. In the UK and Europe, compostable packaging must meet the EN 13432 standard, which requires the material to disintegrate within 12 weeks and fully biodegrade within six months in an industrial composting facility.
The key difference is accountability. Compostable packaging has a clear, measurable standard behind it, whereas biodegradable is a broader, less regulated claim. When you see a product certified as compostable, you know it has been independently tested and verified.
Materials like bagasse — made from sugarcane fibre — are a popular example of compostable food packaging. Bagasse burger boxes, bowls, and plates break down fully in commercial composting and are made from agricultural waste, giving them a genuinely low environmental footprint.
The Key Differences at a Glance
The simplest way to think about it: all compostable packaging is biodegradable, but not all biodegradable packaging is compostable. Biodegradable materials will eventually break down, but there's no guaranteed timeframe or end result. Compostable materials are held to strict standards — they must decompose within months, leave no toxic residue, and produce usable compost.
Another important distinction is where the breakdown happens. Most compostable packaging requires industrial composting facilities that maintain high temperatures (around 58°C) to work properly. Very few compostable food packaging products will break down in a home compost bin within the same timeframe, so it's worth checking with your local council whether industrial composting collection is available in your area.
Which Should You Choose for Your Food Business?
For takeaways, cafés, and food businesses, compostable packaging is generally the stronger choice if you want to make a genuine environmental claim. It gives you a certified, transparent product that customers and regulators can trust.
Consider switching to compostable options across your most-used items first. Paper food containers and kraft bowls are already widely used in the food industry and offer a practical, affordable starting point. For drinks, disposable cups made with plant-based linings and paper straws are straightforward swaps that customers notice and appreciate.
If you're looking to move your entire operation toward greener materials, our eco-friendly packaging range brings together all of our sustainable options in one place — from containers and bags to cutlery and cups — making it easy to find everything you need.
What About Cost?
One of the most common concerns is price. Compostable packaging does tend to cost slightly more than conventional alternatives, but the gap has narrowed significantly in recent years as demand has grown and supply chains have matured. Many businesses find that the small per-unit increase is offset by improved customer perception and loyalty — particularly among younger consumers who actively seek out businesses making sustainable choices.
It's also worth noting that you don't need to switch everything at once. Start with high-visibility items like paper bags and takeaway containers, where customers are most likely to notice the change, and expand from there as your budget allows.
Avoiding Greenwashing
With the UK's Competition and Markets Authority cracking down on misleading environmental claims, getting your packaging labels right matters more than ever. If a product is only biodegradable (without a composting certification), you should avoid calling it "eco-friendly" or "green" without qualification. Stick to verified claims — look for certifications like EN 13432, the Seedling logo, or OK Compost branding on the products you buy.
Choosing products from our Love the Earth range is one way to ensure you're stocking packaging with genuine environmental credentials. Every product in the range has been selected for its sustainability performance, so you can make claims with confidence.
Making the Switch
Understanding the difference between biodegradable and compostable packaging is the first step toward making better choices for your business and the environment. Compostable packaging offers a clear, regulated standard that biodegradable alone cannot match — and with a growing range of affordable options now available, there's never been a better time to start making the switch.
Browse our full eco-friendly range to find compostable containers, cups, bags, and more — all available with fast UK delivery and trade pricing.