OK, I need a little help. My last two all grain beers have been way off on their original gravities. I have been all grain brewing for a long time and I have never missed my target gravity by more than 2-5 gravity points. I've done five or so batches since December that have all been perfect, and all of a sudden the last two batches have been off by 8-10 points . As far as I can tell, I have not varied my technique at all, although I have been shooting for 5.5 gallons instead of 5 but have been accounting for the difference in my recipes. I have two new thermometers to maintain mash.
I am beginning to think it is my grain. the only two things in common these beers have is they came from the same bulk order. I always order pre-crushed and it looks to me like the base malt is very poorly crushed (lots of whole grains). Sadly, I did not notice this until after I started mashing this past weekend.
Would this account for a low gravity of this magnitude? This is an entirely new problem to me.
Thanks in advance.
On Tap: Uncle Willie's Pale Ale; Kolsch
Bottled: Salvator Dopplebock
Up Next: Octoberfest