Mold is virtually everywhere! Mold spore can stay in the air and travel along with air current. Once they land on a moist surface, they start to grow and produce more mold spore. Kitchen is a danger area because of its wet atmosphere so regular cleaning is a must to prevent mold spore to accumulate. Food exposed to air is easily comtaminate with mold spore so never let the food uncover before packing or serving. Ensure also all ingredients are free from mold especially herbs, coffee bean, tea leaves.