Debunking Myths: The Moisture Resistance of Compostable Packaging

/ Shane Sullivan, VP OF APAC, RUPA & Oshrat Adler Eckhaus, Marcom Manager HQ, TIPA

A common misconception surrounding compostable packaging is its alleged vulnerability to moisture, suggesting that packaging might start composting when in contact with moist products, leading to failure on store shelves. This article aims to dispel this myth and clarify why compostable packaging remains robust and effective, even with moisture-rich items.

Contrary to popular belief, compostable packaging does not begin breaking down upon exposure to moisture. The composting process for these materials only starts under specific conditions typical of composting environments, involving particular levels of heat, moisture, and biological activity. These conditions are deliberately created in compost facilities or well-managed compost heaps, not encountered in everyday storage or retail settings.

Advancements in material science have led to the development of compostable packaging that rivals traditional plastics in durability and moisture resistance. This makes them suitable for a variety of products, including those with higher moisture content. Rigorous testing ensures these materials can withstand various conditions, maintaining their integrity until they reach appropriate composting facilities.

Furthermore, the design of compostable packaging takes into consideration the shelf life of the products it encases. Manufacturers conduct thorough research and testing to ensure the packaging does not degrade prematurely when in contact with various product contents, including resistance to moisture, oils, and fats.

In summary, fears that compostable packaging will start decomposing on retail shelves are unfounded. The science behind these materials ensures they are strong and reliable for everyday use, decomposing only in proper composting conditions. By understanding the true nature of compostable packaging, consumers and retailers can confidently adopt these eco-friendly alternatives, assured of their performance and contribution to environmental sustainability.