What is Mold, Anyway?

Molds are the most common type of fungus found on earth, comprising approximately one fourth of the world’s biomass. Molds are amazingly resilient and adaptable. All they need to grow is a food source (which can be practically anything: wood, paper, paint, fabric, plant soil, dust…), moisture and time. Molds reproduce through the production of spores, which can survive for many years in dry, hot environments — needing only moisture and a food source to allow them to germinate.