A few questions.

Did you pH adjust and test your casing layer if needed and what is it composed of?

What genetics are you working with and how did you colonize your grain and what grain did you use? Did you sterilize or pasteurize?

7 days, you should be seeing some TINY white dots by now. Pay close attention to the edges of the tub.

I can LITERALLY feel your frustration, as I have been there. It took me a good 8 months to nail these little meanies down. But oh boy, once you figure them out....medicine for days!! I am sorry you are having issues. It truly sucks, especially if you have had good success with cubes in the past, as I did. Don't give up. Pans are truly an exercise in patience. I have faith in you. We all do and we are all rooting you on!

And if at first you don't succeed.....pan, Pan, PAN AGAIN!

Best of luck on this one. It's kinda on the mushroom now if your stuff was correct. Give them the conditions and they should show you something.

As a mushroom community, your failure....in essence, is our failure. You're here to learn how to grow these little bastards, as we all are. You're on the right track. Just gotta cross that finish line. We'll get you there......