Orange Mold

“Fungi live all around us in various forms. Some are beneficial, some are dangerous, and some are benign. We are not talking about mold on oranges, but orange-colored mold. Compared to most other mold types, orange mold is slimy and spongy rather than fuzzy.”


Orange Mold


This mold can grow on food, wood, and other materials. Initially, this mold appears as small dark-shaded spots before assuming its slimy, orange appearance. Often, it grows alongside and along with other types of mold. Is it dangerous?

If exposed, a person with mold sensitivities may still negatively react to orange mold. Although orange mold is not a significant health threat, it is not entirely harmless.


Orange Mold – What Is It?

In our ecosystem, mold is one of the most important members of the fungi kingdom and helps break down dead organic matter. Mold may appear indoors or outside, wherever moisture and oxygen are present. Excess moisture collects in wood. The moisture makes the wood susceptible to mold.

In general, orange mold is a term used to describe filamentous fungi and organisms that resemble fungi.


Health Risks of Orange Mold

Mold in your house or business doesn’t necessarily cause illness; however, touching or inhaling mold can lead to allergies and other health problems, such as:

  • Irritation of the eyes
  • Sneezing
  • Throat infection
  • Having a headache
  • Rash on the skin
  • Itching of the lungs
  • Nose runny
  • Congestion
  • Wheezing

Suppose you have asthma, cystic fibrosis, or a compromised immune system. In that case, you may experience complications such as infection or a more severe allergic reaction if you grow a large mold.

Some reactions may appear shortly after prolonged exposure, while others can manifest. If you develop any of these symptoms, you should see your doctor immediately for treatment and diagnostic assistance.


The Symptoms and Treatment of Orange Mold

It is important to identify orange mold before you start fighting it. Once you have identified the problem, you should immediately pick up a scrub brush and cleaning solution. Before you do, you should know mold remediation is more challenging than scrubbing. As the spores spread, further contamination may occur. So here is what we suggest:

  • Suit Up: Protect your eyes, wear rubber gloves, and wear a mask to avoid allergic reactions.
  • Use the Right Cleaning Product: Hydrogen peroxide and alkaline cleaners work well on hard surfaces for small infestations.
  • Scrub off the Mold: Clean the surrounding areas to avoid spreading mold spores. Gently scrub the affected areas to ensure no spores are left behind.
  • Dispose of Cleaning Materials: If mold appears on cleaning materials or clothing, throw them away.
  • Dry the Area: To prevent regrowth, completely dry the area.

If you have a large, stubborn orange mold infestation, you’ll need more than simple cleaning. This strategy works best on small, early-stage infestations.


Orange Mold Types


Acremonium Strictum

It is a saprophytic and opportunistic fungus that produces no dark pigment. It occurs in the soil, lumber, and rotting plant matter. This particular group can form orange, yellow, and pink colonies. This species is mostly found outdoors. But you can also find it indoors in humid conditions.

It is uncommon to contract acremonium in the human body, but immunocompromised people are more likely to contract it. Higher temperatures, more humidity, and frequent exposure to A. striatum increase the likelihood of contracting the disease.


Epicoccum Nigrum

Many fungi feed on dead matter. You can use them as antifungals. They promote root growth and reduce sugarcane pathogens. They also support root growth. Often found in the soil of the Americas, Asia, and Europe, this fungus produces felt colonies in bright yellow, orange, red, brown, and black colors and can also increase quickly, reaching 6 cm in two days.

The fungus Epicoccum nigrum can cause adverse health effects, especially when inhaled. Several human skin samples and spit contain the fungus, a significant indoor and outdoor allergen. While it usually does not cause a systemic infection, it is advisable to take care of it if you suspect it exists.



There are several types of orange molds, but Aspergillus molds are the most notorious. Because they can reproduce in elevated temperatures, low water availability, and high sugar and salt concentrations, they are more prevalent than other types of orange mold. Statistics show this orange mold will likely develop inside homes and buildings.

Aspergillus molds can pose serious health problems to humans and animals because they contain aflatoxin, a fungus that is both a toxin and a carcinogen. A patient suffering from Aspergillosis may experience fever, cough, chest pain, and breathlessness.

A fungal infection is one of the best explanations for why early Egyptian explorers and Egyptologists died after spending extended periods in tombs. There is a belief that this is due to the “curse of the pharaohs,” but toxic mold is a more scientific explanation.


Orange Slime Mold

In the slime group of organisms, the creepiest orange mold lives. It is an ancient group of organisms not part of the animal, plant, or fungi kingdom. It has fungi-like characteristics but belongs to the kingdom of Protista. Because of this, slime molds are unique and have a different appearance.

They eat bacteria and other natural microorganisms and grow on moist food sources. It is most likely to grow on natural trees, so lumber that already contains preservatives will not pose as much risk. It is possible to see this type of orange mold on lumber before a sawmill treats it. If you find it, address it immediately because it is considered an allergen.


What Are Some Places Where Orange Mold Can Grow?

Wooden window sills attract orange mold. It also likes exposed beams in basements. Since attics usually have exposed rafters and warm air, they also breed orange mold as they collect moisture and air from the rest of the house.

Lastly, your kitchen is a hotspot for orange mold growth; wood on the floor, especially above the stove, is prone to mold growth.


Exactly What Causes Orange Mold?

Be vigilant with any industrial lumber you use, as orange mold is more likely to grow on wood than other organic materials. Moisture, oxygen, heat, and food sources contribute to mold growth.

Wood packaging is more likely to develop orange mold if it is left in a place with 60% humidity. In testing, it was found that wood with a moisture content above 19% for over a week has a significant risk of mold growth.

It is important to keep the temperature in check for orange mold to grow. Mold should grow between 70 and 85 degrees Fahrenheit. Manufacturers often have difficulty keeping wood packaging outside this temperature zone, so it is vital to keep moisture in check wherever wood packaging and products are.


Orange Mold Removal

Depending on where you find the mold, you can eliminate it using bleach, hydrogen peroxide, or vinegar solutions. If the plague is smaller, you can use a mixture of hydrogen peroxide and vinegar solutions.


Orange Mold Removal


If orange fungus grows on wood, do not use bleach to kill it. Bleach does not work for wood, and most of the water finds its way into the wood, giving the mold colony more chances to multiply.


What to Do About Mold and Its Tiniest Friends?

If you have a mold problem in your home, you can scrub the affected area with soap and water but dry it thoroughly afterward.

If you want to eradicate mold mites specifically or if there is an extensive mold infestation, you might need to hire professionals. A smaller mold outbreak may be easy to clean up, but a larger one can be more challenging. According to the EPA, a professional should intervene if there is more than 10 feet of mold.


How to Prevent Orange Mold?

If orange mold concerns you, the best way to address it is by preventing its occurrence in the first place. If you use industrial lumber in your manufacturing process, mold will not grow. Here are four tips to help you avoid orange mold growth.


Heat-treated lumber vs. kiln-dried lumber

The first prevention method involves stacking lumber inside a large, heated room until the wood has less than 19% moisture. This method prevents warping and reduces weight.

This method is not a sterilization practice, but it reduces dangerous moisture levels, which helps prevent mold growth. In addition to removing most moisture from lumber, kiln drying does not protect against future contamination with moisture exposure. Kiln drying differs from heat-treated lumber because it is a sterilization method.

After 30 minutes in a high-temperature chamber, insects, pests, and molds disappear from lumber. The ISPM 15 stamp requires heat treatment but does not restrict mold. This is because, even though the process kills mold during the process, it does not protect against future mold contamination.

Kiln drying is a better method of preventing orange mold growth because it removes moisture from the wood. Heat treatment does not affect wood moisture; it should be kiln-dried before heat treatment. All surface organisms die in this process, enabling mold spores to grow without competition.

Wood products are at a higher risk for orange mold after heat treatment. They must avoid mold danger zones. If mold is already on the lumber, heat treatment is a good way to kill it. However, kiln drying is a better method for preventing mold growth.


The use of chemicals

Many chemical treatments can help prevent mold growth for three to six months, depending on the storage conditions and the environment. After cutting the lumber, spray or dip the chemicals on it. When packaging and producing wood products, make sure to check the regulations that some industries must follow.


Keep an eye on the weather.

The most important tip for preventing orange mold growth on industrial lumber is to keep it dry and covered with good ventilation. Wood that exposes itself to the elements consistently will be at a high risk of contamination by mold.

To ensure the longevity of wood products, you should store them in a dry, covered environment with good ventilation. Keeping wood products off the ground can also prevent standing water from entering their bottoms.

To avoid a lack of storage and prevent Mother Nature from ruining your products, you may want to consider JIT, or Just-Intimae, deliveries from your supplier that will bring you the exact number of products you need at a time.


Purchase new items instead of recycled ones.

You may want to get rid of the moldy product if you work in an industry with strict rules against mold found in wood packaging. This is especially true for pallet manufacturers who have strict rules against mold.

Although recycled pallets may be less expensive initially, they may also be more prone to mold and other problems. Mold can even be found inside recycled pallets, where you cannot see it. In the long run, new pallets and wood products are better.




Is there a type of mold that is dangerous?

Stachybotrys Chartarum, or black mold, is extremely dangerous to humans. The mycotoxins it produces can cause respiratory problems, headaches, dizziness, and fatigue.


Is mold likely to return in the future?

To get rid of mold, find the source of moisture and fix it before you attempt to remove it. Otherwise, the mold will likely return.


What are the places where mold can grow?

Mold can grow in many places with high humidity, such as bathrooms, kitchens, basements, and windows. It can also grow on wood, carpet, drywall, and fabric.


The Best Time to Seek Help for Orange Mold Removal


It is troubling to find orange mold colonies in your home. As mentioned above, breathing in mold can cause certain ailments and illnesses, especially if it is in high quantities and for a long time. This mold loves to feed on wood and can embed itself virtually anywhere. It can grow in many different places.

You should seek the assistance of a professional if you notice mold colony spreading more than several feet. However, you can deal with the problem yourself if they are smaller.