Det kan være jeg har misforstått, men dette står i guiden:
REUSING THE SUBSTRATE
After your first flush, the same cakes can be re-used up to three times. Simply dry them out for a few days and repeat Step 5.2 (dunking). But don’t roll them in the vermiculite; just place them back in the grow chamber and mist and fan as before. When you start to see contaminants (usually around the third re-use), drench the cakes with the mister spray and dispose of them outside in a secure bag.
Kan være dunk and roll er det du mener med å legge i vann, eventuelt hvor lenge skal det ligge i vann, og skal vannet være lunket?
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