Tetra Pak announced on October 20, 2014 the launch of Tetra Rex Plant-based, described as the industry's first carton made entirely from plant-based, renewable packaging materials. The package combined Forest Stewardship Council-certified paperboard with bio-based low-density polyethylene films and bio-based high-density polyethylene caps derived from sugar cane, developed in partnership with Braskem.
Charles Brand, Tetra Pak vice president of marketing and product management, stated that increasing renewable content offered both environmental benefits and competitive advantage in the environmental profile of customers' products. Commercial availability was targeted for early 2015, initially focused on European chilled dairy applications using the standard one-liter Tetra Rex with TwistCap OSO 34 format.
Customers already running standard Tetra Rex filling lines could adopt the plant-based version without additional capital investment or machine modification—a critical adoption factor for dairy processors evaluating renewable packaging transitions under tight capital approval cycles.
Tetra Pak had previously introduced bio-based LDPE in Brazilian production during 2014 following trials with Coca-Cola Brazil's Del Valle juice brand, building toward the fully renewable Tetra Rex structure announced in October. The company reported that its global packaging portfolio was on average approximately 70 percent renewable material by weight.
While Tetra Pak's announcement centered on gable-top cartons rather than flexible pouches or film laminates, flexible packaging converters tracked the development as evidence that major packaging groups were systemically replacing fossil-based polymer layers with verified bio-based alternatives—a trend with direct implications for sealant film, lidding, and mono-material PE pouch programs.