The Green Choice range of compostable bamboo food containers is made from compressed unbleached bamboo pulp, which is essentially a waste by-product put to good use. They do not have a moisture resistant liner, but the walls are compressed to offer a basic moisture barrier. These are natural products and will degrade naturally. Bamboo products meet FDA specifications for use in food applications. They are suitable for microwave use and refrigeration and can contain hot liquids and oils.