Bacteria, which provide a precise environment to form in combination with a nutrient, nitrogen and calcium source allow for the formation of natural cement in ambient temperatures, taking less than five days to produce a pre-cast material." bioMason has created a market viable model which involves licensing existing masonry manufacturers to begin growing. The inputs for biocements are inexpensive, globally abundant, and can be sourced from waste byproducts. Rather than being cast in fuel intensive furnaces, the material is grown in ambient temperatures. The water component used to deliver the cementation reagents is recycled in a closed-loop system and reused in the manufacturing process. Furthermore, since biological cements are formed in a different crystalline process than Portland based cements, "recent tests have been successful with seawater.