Difference Between Mold and Mildew

Mold vs Mildew

Mold and Mildew are two different kinds of fungi, which grow on moist and dump places. They are difficult to differentiate as both are fungi and have almost similar characteristics. They are good and bad at the same time, as they are source of certain medicines, and they cause many diseases also. We can distinguish them on the basis of color as Molds are more colorful, and Mildew are not.


Mold is a common fungus, which we can see on rotten fruits and vegetables. They usually give slimy appearance, but some types are fluffy too. They are of different colors but mainly red, green and black. Few molds also contain toxins, called as mycotoxins, which cause allergies and other health problems in sensitive people, like coughing, headaches and asthma. If you are exposed to mycotoxins, you might feel irritation in your eye and it can affect your breathing also. Some molds are useful too; they are used in the production of certain foods, like cheese, bread, soy sauce, beer and some sausages. Molds are also used in the production of certain drugs, like penicillin, an antibiotic extracted from a mold Penicillium chrysogenum. Another drug, Lovastatin, is also derived from mold, which is used to lower cholesterol level.


Mildew is another fungus, which grow on moist places, like bathroom walls and bathtubs. Usually, they produce an odor, which gives a particular odor to our basements. There are two common types of mildew, powdery mildew and downy mildew. Powdery mildew is found on flowering plants where as downy mildew grows on agricultural plants. Mildew can also grow on fabrics and paper; they are usually black and gray in color. Moisture absorbing chemicals, like silica gel, can be used to protect fabrics from mildew, which will save your clothes from fungal infection. Basements is another place where we can find mildew, as they are dump and usually have poor ventilation, providing ideal condition for the growth of mildew.

Differences and similarities

Mold and Mildew, both are fungi, which spread by their spores, which are always in air. Both have same characteristics but we can differentiate them because of color and texture, as mold is usually, black, green and red whereas mildew is gray or white in color. Mildew is more common in bathrooms, fabrics and paper, and mold, on the other hand mold commonly grow on food. As they both are found in dump places, so keeping your homes dry is the most important way to prevent your things from fungal infections, constant exposure to fungi may cause allergies and asthma. Large amount of molds can also cause neurological disorders, if a person is exposed to it for long time.

Mold and Mildew are fungi spread by their spores

Mold is, black, green and red; mildew is gray or white

Mildew is more common in bathrooms, fabrics and paper; mold commonly grow on food


Mold and mildew are commonly found is bathrooms, basements and on our food items, they infect our food and environment and are known cause for allergies, asthma, eyes and throat irritation. They are useful too, as they are source of many medicines. Yet, their removal from our homes is necessary, which we can achieve my keeping our homes dry and clean.