That's impressive! I have grown mushroom twice from small kits.

The first time, I received a box of well rotted manure in the mail and only had a few mushroom but many fruit flies.

The second time, I tried oyster mushrooms in winter when it was very dry indoors. I received a container, the size of a large sherbet container, and the mushroom were supposed to know to grow out the top, but the substrate separated from the container sides and the mushrooms were pinning down the sides, so I flipped the whole thing upside down into a large glass bowl, put some water in the bottom and covered it with plastic wrap. The next day I had mushrooms. Every day, the mushrooms pushed the plastic wrap off of the bowl and I harvested enough to have with dinner and put it back down. Next time, I'm going bigger!

I had a question about your compressed bricks. Did you uncompress them before using?