The Unspoken Truth: PLA

When it comes to manufacturing thicker rigid packaging in the range 0.5-10mm wall thickness that can endure a years-long shelf life and safely contain liquid products, drawbacks arise with using pure PLA. PLA is fragile in the 55-65ºC range (near its glass transition temperature), which especially limits its applications as packaging for hot-filled cosmetics and beverages14. Furthermore, pure PLA can take months to decompose under industrial composting conditions and can generate acidic byproducts that decrease the pH of soil or compost.