Well, a couple weeks after my first grow, I personally have some experience with the 9er tek. I used cooked brown rice as the substrate medium, with a layer of perlite as a contam barrier, using 1/2 pint jars and the PF strain. In my opinion, the tek DOES work, but there are a few problems I encountered:
1. Long colonization time - Took about a month for most of my jars to colonize, although some were colonized in about 3 weeks.
2. Even when the jars are "supposedly" fully colonized, and the entire surface of the cake has a nice white layer over it, you should probably let it stay in the jars for another two weeks. This is because I found out that the mycacelium has a somewhat hard time breaking down the rice, basically, it'll worm its way through the spaces between the cooked rice, but it'll take a long time to break down the actual rice grains. You would find that it is easy to break the cakes apart, because the mycacelium network isn't very strong, and there are large chunks of uncolonized rice grains inside the cake itself.
3. Because the rice grains inside are hard to colonize, if one births their cakes a little early, they'll find that pins and shrooms will start to grow, but they will abort. I know this may be due to me growing the PF strain which is notorius for aborts, but I had several fruits that would grow to one to three inches in length, and stop growing. I believe that this is due to the fact that the mushrooms grow faster than the mycacelium network can provide nutrients to the growing fruits, because of the difficulty to break down the rice. So I hypothesize that the shrooms are growing faster than the mycacelium can provide food for them, and they eventually abort.
4. Because the cakes weren't fully colonized throughout the cake, they are more prone to contams. In the end, green mold destroyed the 8 cakes I had growing in my terrarium. I managed to salvage one by cutting it in half and peroxiding it, and one was pretty well colonized and never contamed, but the rest seemed to be infected from the bottom where they were laying on perlite.
*** One good thing to note, using a perlite contam barrier at the top of my jars works just as well as vermiculite, I didn't have any jars get contams from innoculation.
I ended up making tea out of the cakes after cutting off all the mold. Unfortunatelly, I left the tea in the fridge for about 4 days before taking it, and it turned a sort of blue/black from oxidation. If you're going to make tea, and not drink it immediately, freeze it!!! The batch that I gave to a freind that I froze fared much better than the tea I drank. It just tasted nasty and didn't do anything for me. To sum it up, the 9er tek does work, but I'd let your cakes colonize at least a week or two longer invitro. I in my newb haste decided that once they were fully covered that it was time to birth. Let them colonized longer in the jars, and you won't regret it. Just my 2 cents.
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