Standard plastic bags are not biodegradable
Traditional HDPE and LDPE plastic bags do not biodegrade in any meaningful timeframe. When exposed to the environment, they break down into microplastics over hundreds of years — never truly disappearing. 'Degradable' additives that speed up this process often just create smaller plastic fragments, which are equally harmful.
What does 'biodegradable' actually mean?
True biodegradability means a material can be broken down by microorganisms into natural substances (CO₂, water, biomass) within a defined timeframe. Most materials marketed as 'biodegradable' require specific industrial conditions and do not biodegrade in landfills or oceans.
Compostable bags: a better option
Compostable bags certified to ASTM D6400 (industrial composting) or ASTM D6868 (home composting) are genuinely eco-friendly. They break down completely within 90–180 days in a commercial compost facility. Alef offers certified compostable bags made from PLA/PBAT — a plant-based biopolymer.
Recycled plastic: another good choice
Bags made from recycled HDPE or LDPE reduce demand for virgin petroleum-based plastics and lower the carbon footprint of production. They are chemically identical to standard plastic bags but are made from post-consumer or post-industrial recycled content.
The right choice for your business
If your customers have access to commercial composting, compostable bags are ideal. If recycling infrastructure is strong in your market, recycled-content bags are a pragmatic choice. Reusable bags (non-woven polypropylene or woven cotton) offer the highest environmental benefit when used 20+ times.
explore eco-friendly options
Browse our full range of sustainable packaging solutions.