image of white mold
Most molds begin their life cycle with a white body mass and later develop spores which are better color indicators of the type of mold. There are, however, a few molds that will remain white in color throughout their life.


Due to its light color, White Molds can be difficult to detect. It will often appear as a white, powdery film and can blend in with the surface it’s growing on. This type of mold is generally toxic and can cause a range of health issues from allergic reactions and respiratory infections to dizziness, nausea and depression.

Many different types of mold can grow in a white color, and many molds begin their growth white and will change colors as they mature, so it’s difficult to pinpoint an exact mold strain without doing a Mold Test.

Regardless of what strain your white mold is, you’ll need to take the same care in removal and remediation as you would for any other toxic mold in your home. Mold spores are microscopic and white molds can be difficult to detect visually, so it is a good idea to have a professional mold tester come in after remediation to test your air quality and ensure the mold has been completely eradicated.

Badger Tip: White mold is often confused for efflorescence, a crystalline salt growth structure found on concrete and masonry surfaces. You can differentiate between the two by odor and a water test. White mold will have a moldy odor, while efflorescence will be odorless. If you spray water on the affected area, efflorescence will start to dissolve, while white mold will remain unchanged.

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