Lunchbox,
I went out to You Tube to look for some videos of Pizza Port's pizza to see if there were any of them making it. There are two from when they attended Pizza Expo in 2013 and 2014. You can see how thick their dough is and it is thicker than I remember. You can also see what looks to me like a dough that has a highly active quantity of yeast. Since they are also a micro brewer, I'll bet if you reached out either to the brewery, or perhaps checked at the bottle shop, they may be able to give/sell you some of their fresh brewers yeast. That may help produce some of the thick but airy crust they make and I'll bet it would give you some of the flavor your looking for in your crust.
Another thing I think I noticed in the videos is they are preparing them on screens just as you do. However, they do not appear to be in any rush to get them to the oven. It makes me think that like other thicker crusts, they are letting the dough come all the way up to "room temp" as Mary Ann suggests but may also be letting the dough sit on the screen "pre stretched" for a while to give the yeast time to create some air across the pizza skin. Once they top it - and they top it on the very heavy side with toppings - the weight of the toppings keep the center of the pizza from too much expansion.
Earlier in my pizza making journey (not that long ago) I was doing as you do - baking on a screen in my case on pizza stones/soap stone slab. I also did not have a scale at the time so I was guessing about how much yeast to use (I was 2-3 day cold fermenting at that time) I was using about twice as much ADY yeast as you used in your latest pizza and I was mixing it in dry - not dissolved in any water in advance. I got the big puffy rim, but not the right texture or the "Pizza Port" in the center crust of the pizza.
I think a worthwhile experiment would be to:
- try increased ADY/IDY yeast
- make your dough with cool water (not ice cold, not warm)
- skip the sugar it will just make your yeast more active earlier than you want it to.
- try a few days cold ferment using IDY/ADY in the fridge
- once the dough ball is ready, let it come up to room temperature for a few hours before baking in its container.
- shape your pizza on parchment paper on the screen.
- let it further develop on the parchment/screen for some time - watch to see what happens before topping it.
- top it
- slide it with the parchment onto your stone to bake it ( I know PP does not do this but you're not using a conveyor oven with the same kind of top/bottom heat they have)
- I'd try 6-7 minutes @ 530* without opening the door at all. (a preheated stone for at least an hour)
- Check the bottom of the pizza for browing - slide screen under it if it's browning too much.
- turn the broiler on HI and watch closely to see make sure you don't burn the top. (maybe up to 2 more minutes)
That is what I'd try as a next experiment. Here is one of my earlier pies that was closer to what PP does.