Just brewed a batch of my take on this recipe this morning.
5 gallon
7 lbs 2-Row
1 lbs Flaked corn
14 oz Minute rice
90 min. @ 152 (started out around 155, ended up at 149ish in my 5 gallon Igloo)
90 min. boil, 8 gallons into the kettle
.75 oz Cascade @60 min
.25 oz Cascade @10 min
US-05 pitched at about 65 degrees
But, holy crap! I got 5 gallons into the fermenter @ 1.056! Beersmith estimated OG at 1.046. I hit the estimated Pre-boil at 1.040. What the heck am I missing? Did I just get better efficiency than expected? BS says measured eff. of 87.7%!
What's really got me scratching my head is that I mashed in with 12 quarts, and did two batch sparges of 2.5 gallons each (one was a bit more, maybe 2.75) and I got 8 gallons out. How the heck does that happen? Checked my BK story pole and it's right on.
Numbers are all over the place. Maybe I'm just not measuring as carefully as I should.