PERMA-GUARD Fossil Shell Flour 5lb Pouch

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PERMA-GUARD Fossil Shell Flour 5lb Pouch
$18.49

Perma-Guard is making the change to stand-up pouches with the bright new label that you have noticed recently on our 1 lb jars and 3 lb jugs. Our new pouches are resealable, keeping your Diatomaceous Earth safe from environmental contamination.

  • Convenience
  • Easier to open than a pillow bag
  • Recloseable maintain freshness
  • Easier to store

Diatomaceous Earth packaged under our FOSSIL SHELL FLOUR® label comes from an extremely pure fresh water deposit of the diatom Aulacoseira from a deposit created in the Miocene epoch. Why is this diatom so special? Its shell is made of amorphous silica. Its shape and hardness are important to how it works. Its hardness keeps it from dissolving in liquid. The holes along the diatom's wall allow it to absorb moisture, hence its use as an anti-caking agent. Darker colored Diatomaceous Earth often contains an excess of a particular mineral such as iron or a high percentage of clay.

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