No mycelium on top of TGA supersoil

I have had my super soil mix out in the sun cooking for a month now, and I thought there was supposed to be a layer of mycelium over top of it, is that just like a best case scenario? Is this stuff still good to use?

How wet is it? Is it in a light tight container?

it was moist, not soaking wet, but moist. I have experience with different types of...fungus....and I would say it was just right for mycelium growth, but none there.... Was in a garbage can, sealed shut. In the sun for a month.

I did see some white stringy hairs but I figured they were pieces of straw or roots that were already in the dirt? But now that I look at your pics its possible it was some myc.....not sure though...I was expecting more compact, thinner myc.

You're probably not going to see mycelium baking in the sun at those temperatures