Rockwol in hydroponics salad shopping mall
Below example from a large supermarket shows the toxic nature of rockwool. How can anybody consume such a salad, where toxic residues can be found in the lab. The proper solution, which should be applied as an alternative, would consist out of natural fiber.

Best Rockwool Hydroponics alternative

Rockwool cube alternative: Sample of Natural coco fiber Pot, used in the hydroponics setup with salad hydroponics
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