Orange spots on mycelium

Hi, i been spreading wheat Spawn into new wheat. I been experimenting with different techniques.

I think i been having sucess , But some orange spots appeard on My mycelium.

Ive read that it could be mycelium waste or mycelial exudate/sweat. Can you confirm if it's okay or if it's contamination?

My mycelium is pleurotus ostreatus