What Temperature Does Mold Die? Helpful Information

Helen Skeates
Helen Skeates
11 min read

At worst, it can render your home uninhabitable and put you at danger of contracting serious diseases. Mold can be killed at 140 degrees Fahrenheit and above by using an ultraviolet light source. Let’s take a look at what temperature can kill mold, whether it’s determining what kind of mold you have or finding the correct temperature.

It doesn’t matter if you’re a kid or an adult, you don’t want mold in your house. Mold infestations can range from merely unsightly to deadly, depending on the type of mold involved. Fortunately, the majority of mold is temperature sensitive. In order for mold to die, how hot does it need to be?

A temperature of 140 to 160 degrees Fahrenheit causes mold to die. It’s a good idea to use heat to kill mold because it’s a chemical-free method. Even if the mold is heat-resistant, make sure that you don’t use high heat to destroy it.

If you don’t want to use fungicides to get rid of mold, it’s not a simple task. It’s critical that you know what to do if you want to ensure the death of your mold.

What Causes Mold Growth?

Mold removal and control begin with figuring out what brought it on in the first place. Mold can easily flourish in homes, as is to be expected. This is the reason:

  • Mold thrives in the same temperature range as human beings, which is why it thrives in the homes of many people. For the most part, temperatures should be kept between 70°F (21°C) and 120°F (48°C). The better heated air absorbs moisture, the greater the risk of mold formation.
  • When it comes to fungi, water is a necessity for their rapid growth and expansion, which is why homes are often filled with humid air. There are countless places where water can accumulate, from showers and dripping faucets to damp basements and damp laundry rooms. Furthermore, living in a humid environment exacerbates the problem. Mold can thrive in conditions as high as 75% relative humidity or higher.
  • Mold, despite its repulsive appearance, is a living organism that need oxygen to thrive and reproduce. Many forms of mold are able to thrive in low oxygen environments.
  • Source of Food – Mold and mildew can eat just about anything as a food source. Organic debris, such as wallpaper, drywall and wood, can also be a source of food for them.

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How Hot Does It Have To Be To Kill Mold?

Molds have their own unique set of needs in order to survive. Even in temperatures as high as 120 degrees Fahrenheit, most mold will be able to survive. A room must be heated to between 140 and 160 degrees Fahrenheit in order to see mold die. When exposed to this temperature, mold will not always die instantly.

Heat can be used to get rid of mold if the mold has been exposed for at least 20-25 minutes to the source of heat. Otherwise, you run the risk of having mold that is still active.

How Effective Is Killing Mold With Heat?

Aside from the fact that some strains can withstand shockingly high temperatures, this procedure isn’t the most dependable one. Check to discover if it’s a heat resistant strain if you want to be sure you can destroy mold with heat. You should be fine if it isn’t.

Despite the fact that heat is not the most effective option, it still does the job well. A fungicide such as white vinegar or bleach should be used in conjunction with heat treatment to ensure success. It’s especially important if you’ve found black mold in your house already!

Can You Kill Mold With Cold?

When it comes to mold, cold isn’t a good place to start. Heating the affected area is, however. It’s a good way to slow down mold growth and get rid of a lot of it. In order to accomplish this, place the afflicted item in the freezer and make sure it is below zero degrees Fahrenheit.

To eliminate any leftover mold, use a 50/50 solution of white vinegar and water after the item has been frozen.

How Do You Kill Mold With Heat?

IFrameMold spores can be killed by a variety of heat methods, each of which has a specific purpose. In order to simplify the process, we’ve compiled a list of the most popular methods for removing mold using heat.


Is your laundry full of mildew? A stinky bear stuffed doll? It’s horrible, but it does happen. Whenever this happens, put your goods in the dryer on the hottest setting you can get your hands on. Setting a timer for 20 to 25 minutes is a good starting point. The mold should be dead after you’ve done this, so that you can wash your clothes as normal.

Baking It

IFrameOccasionally, you’ll forget about a few dirty dishes in the sink long enough for them to start developing mold. (I know, I know, I know, but bear with me.) It’s possible to bake mold out of ceramic or metal surfaces, if necessary. Simply place the affected objects in an oven at 300 degrees Fahrenheit for 20 minutes.

You don’t want to bake it? If you leave mold in a hot automobile for six hours in 90-degree weather, you may be able to get rid of it. Although this is a viable option, it’s more of a safety net than anything else.

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Heating Units

Smaller goods, such as plush animals and glassware, are typically the only ones for which heat is used to eradicate mold. Heating units and hair dryers, on the other hand, can be used to kill mold on the walls. Specialty space heaters capable of reaching such high temperatures may be required to make this work.

Even if it’s just a tiny area, space heaters may be enough to keep things warm. If you want to get rid of the mold using this method, you’ll almost certainly need to obtain a bed bug heat treatment. We recommend using a weak bleach or white vinegar solution to wash away any remaining mold.

Easy Ways to Prevent or Control Mold Growth

‘Precaution is better than cure’ is a well-known phrase. Mold is a similar example. Getting rid of it can be a long and arduous procedure, but preventing it is a lot less difficult. You can do it in a variety of ways.

  • Proper ventilation requires frequent opening of windows and doors to allow fresh air to circulate. Mold can grow in the air in your home if you don’t get rid of it.
  • As quickly as possible, dry damp objects and areas, such as clothing. This includes stains on the floor and carpets, as well. If you find any holes in the walls or pipes, patch them to prevent mold growth.
  • Dehumidifier – For basements and laundry rooms, a dehumidifier is a must if you can’t keep the moisture out. It is designed to reduce humidity by removing water vapor from the air.
  • Basement Vapor Barrier – If your basement has carpet, make sure that the concrete beneath it is covered with a vapor barrier. There should be a subfloor on top of that, followed by carpeting.
  • Before painting your home, consider adding mold-preventing chemicals to your paint. This prevents the growth of mold on your walls and concrete floors, as well.

Will heat get rid of mold?

Moisture is mold’s Achilles’ heel. What is the most effective means of removing excess moisture? Excessive warmth. Even if you put a mold-covered block on fire, the mold would die, but the smoke and fumes would be hazardous to your health.

Even at temperatures as low as 140 degrees Fahrenheit, most yeasts and fungi will be eliminated by heat treatments. In pickled vegetables, however, some molds may withstand heat treatment and release hot-resistant-spore-emitting spores.

Mold can be killed by heating it, however this is not recommended. Because of the spores it releases, not the mold itself, mold is harmful.

As a result, eradicating all of the mold will have no effect on the poisons, which have already been synthesized. Additionally, if the food you’re trying to cook is tainted with mold, boiling it will only make matters worse.

Controlling and regulating mold growth is best done with an air conditioner to maintain a constant indoor temperature, which will aid to limit and minimize any conditions that will encourage mold’s growth. In some cases, heat is beneficial in killing mold.

FAQ: People Also Ask

How Long Does It Take To Kill Mold With Heat?

The heat kills mold in around 20 to 25 minutes. Mold will not die if exposed to heat for only a few minutes, therefore you should leave it there for at least 20-25 minutes to get the best effects. If you leave it too long, some of the molds will be able to grow and spread.

What Temperature Is Too Cold For Mold?

The optimal temperature range for mold reproduction and growth varies per species. At 60-80 degrees Fahrenheit, the majority of species thrive.

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What Cooking Temperature Kills Mold?

As heat destroys molds, they thrive in foods with a high acid content (fruit, pickles, etc.). 212°F (212°C) is the ideal cooking temperature for destroying mold.

Final Thoughts

Before scrubbing off the mold, you should utilize the heat procedures to guarantee that the mold has been killed. It is possible that mold growth and reproduction will be hampered if temperatures rise over 60°C (140°F). Because it puts mold to sleep and makes it easier to remove, the cold technique may be more convenient for some objects. In order to ensure that mold is completely eradicated, you should consider eliminating infected materials and taking steps to prevent its growth and emergence in the first place, even if these measures are effective at killing the fungus.

Helen Skeates

Helen Skeates

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