EcoSouLife Biodegradable Coffee/Tea Cups Biodegradable cups made from vegetable waste matter of corn, starch, bamboo and rice husks. Sustainable everyday product, that naturally biodegrades within 2-3 years once buried the ground. Dishwasher safe & Reusable Heat resistant up to 248F (120C) Size: 14.5 oz/430ml - Diameter: 9.8cm , Height: 8.8cm Made in Australia - LFGB, SGS, Intertek and FDA approved.