Difference between Mold and Mildew
Mildew is also mold but it has just arrived and it has not penetrated the surface. When I find ‘mold’ on metal I call it mildew. Mildew is what you will find on metal window frames. Mold is what you will find on your bread. On a drywall: if it is new and can be easily wiped off, it is mildew; if it is old and has penetrated the drywall, it is mold.
