Storing Coco Coir

If it's left over coir as in "new/unused medium" your good. If it's from a previous grow and was used to plant in "spent medium", its risky. The time released nutrients question part will depend what strength they are, their concentration and how heavy of a feeder the new plant(s) will be. If this is your normal coir setup, and its mixed in the correct ratio of coir to nutrients, it will be good to go. If you watered the leftovers I'd dry it out a lot and watch for moulds. Airtight containers would be bad, just poke a few pin holes in the top of the bag or leave the lid ajar. When the medium is spent and used, it gets a more complicated. I'd use it for an outdoor grow but not an indoor unless I freshened it up a bit in the sun and made sure it was clean and free of acquired pests/disease/fungus/moulds. Hope this helps.

Hi @miker yes you can store it in a tightly closed plastic bag away from moisture and without being exposed to light. good luck mate 👍

If there are both dry and well stored then you will be abble to use them in a few months without adding some more or just a few . Why dry nutrients you need to store them or your mix including them , away from the humidity , the light and the high températures.