Bio Plus Earth - to go food containers. Bio-Plus® Earth food containers are made from 100% recycled paper using 35% or more post-consumer recycled paper. As a 100% recycled product, Bio-Plus Earth gives a second life to the paper from which it is made. Bio-Plus Earth is processed chlorine free . Bio-Plus Earth is endorsed by the Green Restaurant Association, and the endorsement logo is printed on the bottom of every container.