Wheatstraw is not only an annually renewable resource, but can also be turned into products normally made from plastic or paper. Wheatstraw is the remaining plant material after the wheat grain and chaff have been extracted. We use these byproducts to make compostable tableware. Handles hot liquids up to 220 Fahrenheit (moisture forms at the bottom for hot food items). Meets ASTM D-6400 standard for compostability.