A green accounting method called “mass balance” certifies that something was manufactured with recycled plastic — just not necessarily much of the bottle making the claim.A green accounting method called “mass balance” certifies that something was manufactured with recycled plastic — just not necessarily much of the bottle making the claim. Sustainable Living, Plastic Bottles, Labeling and Labels (Product), Advertising and Marketing, Containers and Packaging, Consumer Protection, Eastman Chemical Company, Nalgene Read More