What is OXO Plastic and Is It Really Biodegradable?

In the search for eco-friendly packaging, OXO-biodegradable plastic has often been marketed as a “green” alternative to conventional plastic. But is OXO truly biodegradable, or does it simply create more microplastic pollution? Let’s explore the science, claims, and controversies behind OXO plastics — and what better alternatives exist.

What is OXO-Biodegradable Plastic?

OXO plastics — sometimes called oxo-degradable or oxo-biodegradable — are made from traditional plastics like polyethylene (PE), polypropylene (PP), or polystyrene, mixed with metal salt additives such as manganese, cobalt, or iron.

These additives speed up oxidation when the plastic is exposed to heat, UV light, and oxygen, causing the plastic to fragment into smaller pieces more quickly than normal plastic.

Manufacturers claim that over time, microbes can consume these smaller oxidized fragments, making OXO a “better” option than standard plastics.

Is OXO Really Biodegradable?

This is where the debate begins.

The claims from manufacturers:

• OXO plastics break down faster than regular plastics.

• Microbes can eventually degrade oxidized fragments.

• Marketed as a solution to reduce long-term plastic pollution.

The criticisms from scientists & regulators:

• Fragmentation ≠ biodegradation. OXO plastics often just become microplastics, which still harm soil, oceans, and wildlife.

• Studies show weak evidence of full biodegradation under real-world conditions.

• Bodies like the European Commission, United Nations Environment Programme (UNEP), and the UK Government have discouraged OXO use.

• In landfills (low oxygen) or oceans (low sunlight), OXO plastics may not degrade at all.

Sustainable Alternatives to OXO Plastics

If the goal is truly sustainable packaging, better options include:

• Certified compostable plastics (EN 13432 / ASTM D6400): Fully biodegrade in industrial composting conditions.

• Bio-based plastics (PLA, PHA): Made from renewable resources and in some cases compostable.

• Paper-based or hybrid packaging: Recyclable, widely accepted, and more environmentally friendly.

Should We Use OXO Plastics?

While OXO plastics degrade faster than traditional plastics, they are not truly biodegradable like paper or certified compostable materials. Instead, they risk leaving behind harmful microplastics that pollute ecosystems.

For brands seeking sustainable packaging solutions, OXO is not recommended. Investing in compostable, recyclable, or bio-based alternatives offers greater environmental benefits and stronger consumer trust.

Don’t let microplastics define your brand’s packaging. Choose solutions that are safe, sustainable, and trusted by over 300 businesses. Talk to Autumn Home Forever SB today.