100% natural. Using sugar cane and bamboo pulp as raw materials, these panels are 100% biodegradable, non-toxic and harmless. It does not emit odor even at high temperatures, acidity, or alkalinity. 100% food contact safe. Recyclable. renewable resource. Can be reused to make paper. Reduces need for petroleum-based materials. Perfect for parties, weddings, hotels, camping, restaurants, barbecues, home, picnics, lunches, dinners, events, catering and everyday use.