Re use coco or nah

I should also mention, to re-use your coco, you will need to sift out most of the roots just using your fingers. You don't need every microscopic fragments out of it. Then, you wash it with fresh water. I ran A LOT of water through my coco. First i ran it through a bucket i drilled holes in the bottom of because you want to wash outt he fines that have been broken down by the natural degradation of the coco. The fines cake and pack which deprives the roots in it's presence of oxygen, and can create dry pockets. So give it a good rinse. You hot water to also wash out salts. Then refill your fabric pots after you've washed those. Put them in the bathtub and fill the tub with hot water till the pots float, and let them soak for a few hours. Come back and the water will be orange. Drain the tub and repeat a few times. When you're satisfied with the wash, then refill the tub again with cold water, and make sure you know how much water is in the tub because you are going to treat it with calmag according the the bottles recommendation. Then you are going to pH that water to the desired pH you want. Then submerge the pots in that water and let them soak for 24 to 48 hours. Coming back periodically to adjust the pH. After 48 your soak with ph being held consistent by you, then you're good to go. Drain the tub and let the pots sit and dry out or reduce the water capacity, and plant away. That's exactly what i did. Only difference is i used a 2x strength of calmag, and when i planted and the roots got down deep into the soil, there was a little nitrogen over abundance in the soil that was displaying on the plants a bit. But that went away after about 5 days and they just took the fuck off! Don't listen to people that say buy new shit. They probably own a hydro store lol

I'm currently using coco that i root sifted, washed, and buffered myself. Just use an cellulase enzyme product in your water and that will dissolve any left over root material and turn it into bioavailable food. Go look at my current Biscotti Mintz run if you like. If you didn't have bugs or sickness in the last run you used with the coco, then there's no reason to think you will if you re-use it. A 50L bag of Coco is now bucks at my local shop. So fuckin A right re-use it. Don't be an idiot.

I reuse substrate all the time, coco and soil. Coco is especially easy to recycle. Let it get good and dry so it's more crumbly. Sift out as much of the larger root mass as you can, thorough rinsing, and rebuffer with pHed water and CalMag. Soil can be a little more involved if you want it to supply nutritional needs, aka reammending.

In Europe they even state on a package that coco coir is reusable. You just have to clean it properly.

I reuse coco about 3 times. 2nd and 3rd uses are better. The coco starts breaking down, and releasing potassium. Ph is easier to control with it being already buffered down. I would just break it up and remove as much root remains as possible. Then flush it really good with 5.8 ph water to rinse out any prior nutes left behind. Then you are ready to start again. I have used coco grows for many grows.

give it a good rinse to remove any built up salts and potential insect eggs etc let it dry then it should be okay for reuse. the old root matter should break down on its own potentially feeding any micro biology in the medium

As long as you refresh it I don't see a problem. Give the medium a good cleaning and get out as many roots as you can, then give it a good rinse in water or enzymes to remove old salts and soak in CaMg to rebuffer it. Dry for future use. If it has anything else in it though like compost and such you might need to age it and refortify it. I heard others using enzymes as well to eat away anything let in the medium, but I don't do this. I just toss it in a black garage bag and let it cook in the sun for a few weeks, should kill off any pathogens and pests. I dry it out so it won't mold and then reuse it later. Good Luck!