Compostable ≠ Composted

Did you know that your “compostable” takeaway container can still end up polluting the planet—just like plastic if tossed in the wrong bin?

That’s because compostable doesn’t mean composted. This critical misunderstanding is fueling a silent environmental backfire, even among well-meaning green consumers. While biodegradable packaging is on the rise, most people don’t realize these materials require specific conditions to actually break down—and Nigeria, like many countries, isn't fully ready.

What People Think They Know

The word compostable evokes nature friendly images: banana peels, garden mulch, maybe even green-tinted paper plates. Most people assume that if a product is labeled “compostable,” it will decompose naturally and safely in any environment, whether tossed into the backyard or dumped with general waste.

In many Nigerian homes and marketplaces, these items are treated like regular organic waste burned, buried, or left out with the hope that "nature will take care of it."

Common myths

Myth 1: Compostable = biodegradable anywhere

Myth 2: Compostable packaging can be tossed in the soil or garden waste

Myth 3: Compostable items can be burned without harm

These misconceptions are widespread and understandable—after all, compostable sounds like it should just disappear. But without the right system in place, they can cause more harm than good.

What Science Really Says

The Chemistry of Compostability

To be truly compostable, a material must meet scientific standards—specifically breaking down into carbon dioxide, water, and biomass without toxic residue and within a specific time frame.

According to the ASTM D6400 and EN 13432 standards:

Materials must break down under industrial composting conditions—high heat (~58°C), moisture, oxygen, and microbial activity.

Compostable plastics like PLA (polylactic acid) are derived from cornstarch but won’t decompose in normal soil or landfill settings.

Chemistry Insight:

PLA plastic has a molecular structure that remains stable at room temperature. It only softens and degrades in controlled compost environments. In contrast, typical garden composting doesn't reach the necessary temperature, slowing or halting decomposition entirely (Song et al., 2009).

Health Concerns of Mismanaged Compostables

When burned, common in Nigeria. compostable items release carbon monoxide, particulate matter, and toxic compounds similar to regular plastics, especially if additives or coatings are used.

Case Study:

An investigation into bioplastic waste in landfills showed that after 3 years, no significant degradation occurred for compostable coffee pods and cutlery in natural soil (Emadian et al., 2017).

Why It Matters

Nigeria is rapidly urbanizing and adopting global trends in eco-friendly packaging—especially in Lagos, Abuja, and Port Harcourt. But waste infrastructure is not keeping up with the pace.

Industrial composting facilities? Almost non-existent.

Curbside organic collection? Rare.

Waste segregation? Still developing in most cities.

As a result:

Compostables go into general trash → end up in landfills → don’t decompose.

Or worse, they are burned, releasing dangerous toxins into communities already battling air pollution.

The Greenwashing Risk

Labels like “100% compostable” create false confidence. This greenwashing tricks consumers and small businesses into thinking they’re making a positive impact—when in fact, these items act like plastics without the right disposal systems.

What you need to do

1. Learn to Read Beyond the Label

Look for compostable certifications like BPI (US) or TÜV Austria (EU) and note if they specify home compostable vs. industrial compostable.

2. Choose True Organic Waste Where Possible

A banana peel will always break down faster and safer than any certified compostable fork. Nature’s original packaging wins.

3. Support or Start Local Compost Initiatives

Grassroots composting hubs—community gardens, schools, religious centers—can become pilot centers for education and action.

4. Pressure Local Councils

Ask your LGA representatives or urban waste authorities: Where does our organic waste go? Encourage pilot industrial composting zones or partnerships with eco-startups.

5. Don’t Burn Compostables

Even if it looks “green,” don’t throw compostable packaging into the fire. Treat it like regular waste unless you're certain it can be composted safely.

6. Reuse Before Disposal

Before you toss it, reuse that compostable bowl for seedlings, storage, or as a temporary scoop. Extending its life reduces waste.

Conclusion:

Compostable ≠ Composted.

It’s time to go beyond the label and face the real issue: without proper systems, even eco-packaging is just waste in disguise. As Nigeria moves toward a cleaner, greener future, we must educate ourselves and demand smarter waste solutions—because the road to sustainability is paved with informed choices, not just buzzwords.

Let’s Keep the Green Conversation Going

Have you ever used a “compostable” product thinking it was eco-friendly? What surprised you most from this post? Drop your thoughts in the comments below we’d love to hear from you.

If you found this post helpful, please share it with friends, family, or anyone trying to live sustainably.

Don’t forget to subscribe to the blog for more green truths on #Greentruthswithsaadatu series every week, DIY tips, and science-backed insights made simple. Let’s #GreenWithMe and build a cleaner, smarter Nigeria together.

References:

Song, J.H. et al. (2009). Biodegradable and compostable alternatives to conventional plastics. Waste Management. https://doi.org/10.1016/j.wasman.2009.05.004

Emadian, S. M. et al. (2017). Biodegradation of bioplastics in natural environments. Waste Management. https://doi.org/10.1016/j.wasman.2016.12.023

ASTM D6400 – Standard Specification for Labeling of Plastics Designed to be Aerobically Composted in Municipal or Industrial Facilities.

European Standard EN 13432 – Packaging: Requirements for packaging recoverable through composting and biodegradation.

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