Biodegradable vs. Compostable
As sustainability becomes a primary focus for brands and consumers alike, eco-friendly terminology is everywhere. Two of the most common terms you will see are "biodegradable" and "compostable." While they are often used interchangeably, they actually mean very different things. Understanding this difference is essential for making the right sustainable packaging choices for your products.
What is Biodegradable?
If a material is biodegradable, it means that it can be naturally broken down by microorganisms (like bacteria and fungi) over time. However, the term "biodegradable" does not specify how long this process will take or what the material will break down into. A biodegradable item could take a year to break down, or it could take hundreds of years. Without proper conditions, some biodegradable materials can even leave behind microplastics or toxic residues.
What is Compostable?
Compostable materials go a step further. Not only do they break down naturally, but they do so within a specific timeframe (usually under 180 days) and in specific conditions (requiring a mix of heat, moisture, and oxygen). Most importantly, compostable materials break down into nutrient-rich organic matter that leaves zero toxic residue behind, actively benefiting the soil.
The Key Differences at a Glance
- Timeframe: Compostable items break down quickly (usually within a few months) in the right conditions. Biodegradable items have no set time limit and can take years.
- Residue: Compostable products turn into natural, nutrient-rich soil. Biodegradable products can sometimes leave behind harmful residues or microplastics.
- Certification: Compostable materials are strictly regulated and must pass specific industry certifications (such as OK Compost or EN 13432). Biodegradable claims are often less regulated.
- Environment: Compostable items require specific environments (like an industrial composting facility or a home compost bin) to break down effectively.
When choosing labels for your eco-friendly packaging, ensuring you have the right material matters. If your goal is zero waste and soil health, certified compostable labels are the gold standard.