Posted by JJ on 24th Oct 2023

What Causes Mold in a Big Green Egg and how to Kill it

There is nothing scarier to a Big Green Egg owner than opening the lid of you Egg and discovering unsightly mold lurking inside... Fear not! In this blog post, we'll explore the common causes of mold in your Big Green Egg and will show you how easy it is to clean it up and prevent its return, ensuring your grilling experiences remain as exceptional as ever.

What Causes Mold Inside Your Big Green Egg?

  1. Moisture and Humidity: One of the primary culprits behind mold growth in your Big Green Egg is excess moisture and humidity. When the Egg is not used frequently, or if it's exposed to rain or high humidity, it creates an ideal environment for mold to thrive.
  2. Residual Food Debris: Food particles left behind in the Egg can serve as a breeding ground for mold. Even the tiniest remnants can provide the nutrients mold needs to grow.
  3. Neglected Cleaning: Regular cleaning and maintenance are essential to prevent mold. If you've neglected cleaning your Big Green Egg for an extended period, mold can easily take hold.

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How to Clean Mold from Your Big Green Egg

Step 1: Preheat and Burn Off Residue

Add some charcoal and quickly fire up your Big Green Egg with a JJGeorge Grill Torch.  Light charcoal with torch in multiple locations, open all vents and let your grill reach a high temperature (around 600°F or higher). This will burn off any remaining mold spores and residual moisture. It should take about an hour.

Step 2: Maintain Dryness

To prevent mold from returning, store your Big Green Egg in a dry, well-ventilated area or consider investing in a waterproof JJGeorge Big Green Egg Cover to protect it from the elements when not in use.


A little mold inside your Big Green Egg is no match for a 600°F plus fire in the versatile cooker. By understanding the causes of mold and following the provided cleaning guide, you'll ensure that your beloved Egg remains a source of delicious grilling adventures for years to come. Don't let mold dampen your outdoor cooking enthusiasm; keep your Big Green Egg mold-free and ready for your next culinary masterpiece! 

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