Mold Food Sources & Cleaning to Prevent Mold Mold grows and feeds on organic substances such as wood or cotton. Mold should not grow on surfaces like plastic, metal or glass unless there is a layer of grease or some other organic substance which it can feed on. Some materials mold commonly grows on in the home include wood, carpet, food, paper, insulation, wallpaper, paint, wallpaper glue, plasterboard, fabrics, cotton, books, leather, chipboard, furniture, dust, ceiling tiles, inside air conditioners and almost any other organic material.
You should clean regularly to reduce dirt and grime which mold can live on. Dust and vacuum often, ideally with a HEPA (High Efficiency Particulate Air) filtered vacuum cleaner to remove dust and other substances that mold can grow off of. It has been found that 80% of mold grows on dust.