I've recycled my soil for over 5 years with no problems. I re amend it with bone meal, blood meal, phosphorus heavy bat guano, azomite, Dolomite, micro organisms, earth worm castings, epson salt. I adjust the ratios according to how long I'm going to grow for. I never cooked my soil. But it cooks itself now that it sits outside. I'll throw compost on it sometimes as well. The product always ends up fire. Plus I have it automated on a pump and timer with a syphon relief valve. It's hooked up to the hose bib and refills a res on a timer as well. All I do is prune. My indoor does the same thing. I have a hose running into a res in there also. And I run both at the same time sometimes. I could run literally hundreds of plants while on vacation if I wanted to. There is a huge benefit to super soil, plus you know what you put in it so you can know to expect as far as quality goes. I recently built a miniature one also that runs my seed starters. It's automated also. I just fill the res. I like to make it easy on myself.
