hashie wrote:Great to hear SacSoul, did you find any drop in efficiency between the "lace curtain"and the game bag?
I can't tell yet. I made the mistake of getting my base grains un-crushed

I attempted to hand crush with a rolling pin, but made it through about 0.5 lbs before I gave up on that and just used the coffee grinder (I know, I know, bad bad me!!). So, I'm thinking my drastic drop in effeciency was due to that (OG was supposed to be around 1.075 @ 80% and I hit 1.065). One thing I did notice was that draining/squeezing the bag was far easier with my crude method. I have a grate that I place over my pot and rest the bag on it for ~10-15 minutes while squeezing out as much wort as possible. The curtain didn't really have a defined shape since I was too lazy to sew it up, so it would not sit well without spilling all over. The game bad has a very tight, defined shape and rests well.
In all honesty, the largest drawback with the new bag was mashing in, since its elasticity keeps it from hugging the sides of the kettle prior to grain addition. It slowly expands as you add grains in to ultimately fill out the shape of the kettle, but I think I had a few small dough balls form up for the first time ever, and I think this was due to the grains not dispersing immediately when being added. I had to add ~1 lbs of grains at a time, stir, add, stir... That being said, it easily held the 17 lbs of grains after some work, and supported the wieght as I lifted and dunk-sparged a few times.
On a side note: I've been wondering how much altitude affects efficiencies. I'm dealing with high water loss (due to very low relative humidity here) and lower boiling points. Anyone know? It hasn't really bothered me yet, but my highest into fermentation efficiency has been around 70ish%. I wouldn't mind getting it higher so I can drop my grain bills a bit (I make up for my lower efficiency with larger grain bills).