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Worm Factory Refill Kit


Our price: $31.95


Refill bedding materials for your Worm Factory composter: pumice, glacial rock dust, and coconut coir. Provides enough worm bedding for at least 8 composting trays. read more

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Our Price: $31.95


Worm Factory Refill package includes pumice, mineral rock dust and coir in the same convenient size packages that originally came with the Worm Factory 360 composter. When used as instructed this kit contains enough bedding materials for at least 8 composting trays.

Features & Benefits:

  • Coir is ground coconut fiber. It is the most desirable bedding material because it retains moisture and improves the quality of the worm castings that go into your garden.
  • Pumice is a lightweight, porous, volcanic rock which provides excellent aeration and drainage for your vermicomposter.
  • Glacial Rock Dust provides grit and help correct pH levels. Glacial Rock Dust feeds the microbes that feed the worms and help plants take up minerals otherwise not available.


  • 4 x 2 cup packages of pumice
  • 4 x 8 ounce jars of mineral rock dust
  • 4 x 250g bricks of coconut coir

About Worm Bedding:

Bedding materials provide the optimal balance to kitchen scraps and create an ideal environment for worms, which ensures nutrient-rich vermicompost. Bedding materials should compose half of the material added to feeding trays.

Pumice and coconut coir are essential for air circulation and moisture control in your composter. Prevents odors from forming in the Worm Factory by providing carbon, so the system doesn't sour. They also keep the materials in the tray from packing tightly, allowing the worms to move freely.

Mineral rock dust provides grit for the worms and works as a microbial enhancer during the composting process. Mineral dust increases micronutrients in finished compost. Add to your garden soil for optimal plant growth.

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Certain products have extended warranties (up to 50 years!) that are listed on the particular product page. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Weight 7 lbs.
Dimensions 8 x 8 x 8 inches
Key Feature Worm Factory bedding materials: pumice, mineral rock dust, coco coir
Origin Made in the U.S.A.

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Fedex or UPS

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