The+five+essentials

**1. Temperature**
Once the 95-100 F. (35-38° C.) temperature threshold is surpassed, donnant thermophiles spring to life, threatening the mushroom mycelium's hold on the substrate. For cultivators in warm climates, these temperature spirals may be difficult to control [1]. Internal temperatures should not exceed 95° F. (35° C.) or black pin molds and other thermophilic competitors will awaken, especially under the rich CO2 conditions created as a by-product of spawn running [1]. Should internal temperatures exceed 1000 F. (38° C.) in the core of each bag, latent contami nants, especially thermophilic bacteria and black pin molds (Aspergillus, Rhizopus, and Mucor) spring forth, contaminating each and every bag [1].

**References**

 * 1) Stamets