100% Renewable resource, the millennium's new "wood". Bamboo is harder and denser than most hard woods, it is16% harder than maple, which is the most common wood used for most cutting boards. After harvesting, bamboo grows back and can be re-harvested every 4 Â½ years. Bamboo does not need re-planting. Most hardwood have a 30 to 60 year growth cycle.We use only premium grade bamboo and then, only the lower portion of each pole because it is much denser. Our factory adheres to a very stringent protocol, for curing and processing, resulting in the highest quality product attainable. Our factory is ISO 9001 compliant which is a rating system covering non-polluting environmental issues and employee welfare , safety and minimum age. Many large corporations require this.Progressive engineering, such as our Hawaiian Collection featuring opposing grain end caps. This reduces the chance of warping, stabilizing the boards for years of use..