Phoebe is chemically engineered for growers who are sensitive to animal byproducts. Our proprietary blend contains coffee, coco coir, vermiculite, lime, gypsum and other minerals to meet the needs of therapeutic and exotic species. The hydration of every batch is PH tested and brought to field capacity. Each bag is weighed and sterilized, then cooled and sealed in front of our MERV-rated, HEPA filtered flow hoods. Our substrate bags are available to be used immediately and are shelf-stable for up to 8 weeks from the batch date.