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Old May 11, 2022   #7
Join Date: Oct 2014
Location: virginia
Posts: 677

Originally Posted by paradajky View Post
Any concerns with salt content of coco coir? I know some of the brands require rinsing before using in a container application, especially the cheapest ones, but not sure whether this would be an issue in actual ground.

I have no concerns about salt in the Expert Gardener brand. I use it all the time and have never rinsed it. But if you want to be on the safe side you can either test it or just rinse it From the same thread I posted above

This is made by PlantBest in Canada and rebranded with the Walmart brand. It is pre-rinsed using no chemicals.

Someone did an analysis on it and it had less salt than tap water. I did not rinse mine. One less step

Expert Gardener Coco Coir is selling at my local Walmart. Brought it home for testing against 2 other highly rated coco coirs from Amazon. Sourced near the oceans, coco coir has salts that often need to be washed out prior to use. After pouring reverse osmosis water through, Expert Gardener measured with the least dissolved solids: Triumph Plant Coco Coir Bricks $16.95 for 6.26 lbs: 939 ppm (Poor, needs lots of washing) Coco Bliss Premium Coconut Coir $19.89 for 10lbs: 594 ppm (Ok, needs more washing) Expert Gardener $7.97 for 8.25lbs: 119 ppm (Very Good) Keep in mind, tap water is typically 200+ ppm so if you're not using reverse osmosis water, this is perfect out of the package.
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