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Writer's pictureAndy Hemmer

Diatomaceous Earth for Food Storage

Updated: Nov 7


stored food

Dry food storage is an essential aspect of modern living, particularly for those who prioritize preparedness, sustainability, and health. Among the various methods to ensure long-term food preservation, the use of diatomaceous earth (DE) has gained popularity due to its natural and non-toxic properties. This blog post will explore the benefits, applications, and considerations of using diatomaceous earth for food storage.



What is Diatomaceous Earth?

bowl of diatomaceous earth

Diatomaceous earth is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder. It is derived from the fossilized remains of diatoms, a type of hard-shelled algae. DE is composed mainly of silica, which this silica content is inert and safe for various uses, including food storage. In this article we are referring to food grade diatomaceous earth which has a very low amount of crystalline silica within it.



Benefits of Diatomaceous Earth For Food Storage


  • Natural and Non-Toxic: One of the primary advantages of using diatomaceous earth is its natural and non-toxic nature. Unlike chemical pesticides, DE poses no harm to humans or pets when used correctly, making it a safer alternative for protecting stored food from pests.


  • Effective Pest Control: Diatomaceous earth works by absorbing the lipids from the exoskeletons of insects, causing them to dehydrate and die. This method is effective against a wide range of pests, including ants, beetles, weevils, and moths, which are common culprits in food storage areas.


  • Preservation of Nutrients: Since DE is inert and does not react with stored food, it preserves the nutritional value and quality of the food. This is crucial for long-term storage, ensuring that the food remains safe and healthy to consume.


  • Moisture Control: DE has desiccant properties, meaning it can absorb moisture. This helps in maintaining a dry environment within storage containers, reducing the risk of mold and mildew growth. DE is used in animal feed for moisture control and flow of feed through equipment.



How to Use Diatomaceous Earth for Food Storage


  • Choosing the Right Grade: It is crucial to use food-grade diatomaceous earth for food storage purposes, with a high silica content. Other forms of DE, such as those used for pool filtration, contain additives and are not safe for consumption.


  • Preparation: Before applying DE, ensure that your storage containers and food are dry. Moisture can reduce the effectiveness of DE and promote the growth of mold.


  • Application: Lightly dust a thin layer of DE on the bottom of storage containers. For larger containers or bags, you can mix DE directly with the grains, legumes, or other food items. The recommended ratio is about 1 cup of DE for every 50 pounds of food.


  • Sealing and Storing: After applying DE, seal the containers tightly to prevent any moisture or pests from entering. Store the containers in a cool, dry place to maximize the shelf life of your food.



Considerations and Precautions


  • Handling DE: While food-grade diatomaceous earth is safe, it is advisable to wear a mask when handling the powder to avoid inhaling fine particles. DE can irritate the respiratory system if inhaled in large quantities.


  • Monitoring Storage: Regularly check your stored food for any signs of pests or moisture. Although DE is highly effective, it's always good practice to monitor your storage conditions.


  • Proper Labeling: Clearly label your storage containers with the type of food and the date of storage. This helps in keeping track of your food inventory and ensures that older items are used first.



Conclusion

Diatomaceous earth is a versatile and effective solution for food storage, offering a natural and non-toxic way to protect your food from pests and moisture. By incorporating DE into your food storage practices, you can ensure that your pantry remains well-stocked with healthy, pest-free food. Whether you're a prepper, a homesteader, or simply someone looking to extend the shelf life of your groceries, diatomaceous earth is a valuable tool in your food storage arsenal.


By understanding the benefits and proper usage of diatomaceous earth, you can enhance your food storage strategy and enjoy peace of mind knowing that your food supply is safeguarded naturally.

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