Experimental All Grain Starter Wort - Blonde Ale

* * * * Experimental see below for notes * * * *
Mash @ 152°F (BIAB) for 30 min with about 750 ml. Then check for conversion with an iodine test. If conversion is complete, drain off first runnings (filter or strain if needed) and batch sparge for about 10 minutes with 165°F water. Adjust water volume to compensate for grain absorption to make about 1.25L boil volume. Note - Boil off rates may vary. You may need to adjust for proper gravity by diluting wort or adjusting pre-boil volume to get the 1L batch size. I would say that the gravity is more important than the volume, but again - this is an experiment.
~Dman
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Edited 4/18/2020
Notes - OK Here goes. Apparently I can't even follow my own instructions, because I added 1.25L of water to the little 6 pack cooler I was using instead of 750ml. Boil off was way more than I thought too. I only had about 800ml left after the boil. I kept losing heat during the "mash". I did take out some of the liquor out and kind of "decocted" it to heat the mash back up. After 30 min I had conversion, so I dumped it into the kettle through a paper towel lined strainer. I sparged the grain with some hotter water about 165°F for about 10 min and drained that off through towels too. Had about 1.25L in the kettle and boiled it for about 15 min. The OG was 1.044 (I adjusted the efficiency of this recipe to match, but it was probably the boil off that caused the higher gravity OG was supposed to be 1.040) And after settling out as much of the "flour" gunk as I could, I only had about 700ml in my Erlenmeyer flask. Good thing too, because in a 1L flask the foam goes WAY up there when it ferments, LOL. I added US-05 to the flask and put it on my stir plate. I plan to use 1/2 of this on my test SMASH recipe, and I'll cold crash the rest and maybe wash it if needed and save it to make another starter with. Also - I should mention that I used a very tight woven and strong one of those "pressing bags", not the thin paint strainer ones that let tons of gunk through.