What is the difference between mold and mildew? (with photos)

Moldy grapes.

“Mold” and “mold” are terms commonly used to describe the growth of fungi on various surfaces. “Mold” is also a scientific term that describes a type of plant disease. In common usage, the difference between mold and mildew is usually in their appearance and the surfaces they are growing on. Mold is usually thicker and black, green, red, or blue in color, and mold is usually lighter, powdery, and gray or white. Both mold and mildew often grow in damp, warm places, but mold is most often found in showers, on paper, and on fabrics, and mold is often found on food, walls, and other permanent structures.


A moldy orange.

In plant science, the two main types of powdery mildew are powder and fluff. Powdery mildew is commonly found on roses and other flowering plants and often looks like white or gray patches. It is created by a type of ascomycota fungus. Downy mildew comes from the oomycota type of fungus and is found in agricultural products like grapes and potatoes. Its appearance varies from plant to plant, with some common indications being leaf spots and distortions, downy spots, and crystalline spores that can look like sugar.

moldy bread.

In the home, mold often forms in bathrooms, where moisture provides a suitable environment for mold to grow. It can also form on objects, such as pieces of paper or clothing, that get damp and stay in one place for several days or weeks. Downy mildew in these situations is usually a fine, powdery growth of a fungus. When allowed to grow for an extended period of time, it can turn into what most people call mold.

See also  What is a floor socket? (with photo)


Penicillin was discovered accidentally when mold formed in a Petri dish.

Mold often appears fuzzy or slimy, depending on the type. A heavy mold can start to look like a plant growth covering the surface. Some mold-covered surfaces may start to rot. The mold can also appear in various colors. On a wall or ceiling, some types of mold can look like irregularly shaped black or gray patches.


Some fungi have toxins called mycotoxins, which can cause allergic reactions or other illnesses in some people. Symptoms of a mold allergy can include headaches, asthma, and coughing. Eye and throat irritation can also occur as a result of breathing in mold toxins. Molds are not always harmful; the antibiotic penicillin was created from the mold of the same name.

safety precautions

Mold is thicker than mold and can appear in many colors, including red.

Keeping areas dry is the most important preventive measure for eliminating mold and mildew. Moldy foods should not be consumed. A mold infestation on paper and some fabrics can’t be wiped off, but a mold remover can usually get rid of mold on harder surfaces, such as those found in bathrooms. Some mold and mildew removal products should not be used by people with asthma or in areas that are not well ventilated. In situations where there is a lot of fungus growth, a professional may be needed to clean the space and repair any damage.

Leave a Comment