EcoSoulife Husk tableware is made primarily of rice husk fibre, a raw material generally burned by farmers as a by-product of rice harvesting. Instead, we pulverize the raw material into husk powder to transform it into durable, reusable tableware. Great for everyday use, these products are a greate replacement for pocelain and melamine. *While this product is made of all-natural bio-based bamboo material, this product does not degrade in your cupboard. For years of normal use, wash by hand or in the dishwasher and dry. Bamboo will naturally breakDown when buried in soil or landfills when moisture, bacteria, heat and other factors are present. Breakdown period may vary depending on environmental conditions.