As brands and consumers continue to demand more sustainable options, paperboard
packaging has become a prime solution due to its recyclability. That said, another avenue
is composting. As we look to diversify waste streams and make our product as circular as
possible, our industry should explore all the available options. This brief will serve as your
introduction to composting for paperboard packaging.
What is Composting?
According to the Biodegradable Products Institute (BPI), “Composting is a natural process
that turns organic materials into a valuable soil amendment. As an organic-matter
resource, compost has the unique ability to improve the chemical, physical, and biological
characteristics of soils.” A great introductory video from Packaging World defines
compostable packaging as that which is able to “break down into carbon dioxide, water,
and biomass within a specific timeframe under specific conditions.”
During the composting process, aerobic (oxygen-requiring) microorganisms break down
materials; in industrial settings (see more below), temperature and other environmental
conditions are kept at optimal levels to accelerate the decomposition process. Compost
can be created from many different “feedstocks”—mostly organic raw materials and food
scraps. Yet, as we will see, composters are also utilizing increasing amounts of fiber-based
packaging.
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Please note that this content is intended to serve as general information for the benefit of PPC’s members and DOES NOT constitute legal or business advice or guidance. Member companies should consult with their experts and advisors regarding the applicability of content to their products or operations.