World Centricandreg; Clear Cold Cups are made from PLA, which is derived from plants and are suitable for cold drinks and are freezer safe. Our NoTree™ paper cold cups are made from plant fiber paper with bio-based linings and are great for cold beverages and freezer safe. Compostable in a commercial composting facility. Not microwavable. Read more about TPLA on our blog: Compostable Plastics