The 'Biodegradable' Plastic Fallacy: PLA vs. Home Compostable
PLA (Polylactic Acid) is marketed as the holy grail of eco-plastics. It's made from corn starch! It's biodegradable! It sounds perfect for your company's "Zero Waste" initiative.
But here is the fine print: PLA is only "Industrially Compostable." It requires sustained temperatures of 60°C (140°F) and specific microbial conditions to break down. If you throw a PLA cup into a home compost bin, it will sit there for years. If you throw it in a landfill (which is anaerobic), it generates methane, a potent greenhouse gas.
Worse, if your employees mistakenly throw PLA into the standard plastic recycling bin, it contaminates the recycling stream (PET/HDPE), potentially ruining an entire batch of recycled material.
In practice, this is often where Eco-Friendly Material Selection decisions start to be misjudged. You buy the material without considering the infrastructure required to dispose of it.
The Fix: Unless your office has a dedicated collection service for industrial composting, avoid PLA. Opt for "Home Compostable" certified materials (like bagasse or wheat straw blends) or, better yet, high-quality Recycled & Recyclable plastics (rPET) that fit into existing municipal recycling systems.
