Hemp Crete hurd, GROWN IN USA, pesticide free. to make HempCrete use 1 part hemp hurd, 2 parts water and 1.5 parts binder such as lime. Our Premium Midwest grown hemp hurd is the perfect 1/2 piece size for HempCrete. 10 Lbs = 51 Liters and 28 Lbs = 142 Liters ours is the perfect solution for Deep Eco conscious builders and crafters looking for a high-quality, sustainable, and eco-friendly, natural building material to make Hemp Crete. Larger size hemp hurd can also be used for plant or garden mulch as well as Animal bedding for those who want a larger grade of hurd. Hemp hurd has a high silica content which traps and suppresses ammonia odor as well as moisture as a mulch and obviously absorbs and creates a structure with the lime and water for amazing hemp crete that is anti fungal and mold resistant, soundproof, fireproof, ecologically friendly.