I do not have the recipe here at work with me, so I can't provide any exact info at this time regarding grain bill. Here is what I think it was though:
Mash in with 3.44 gal of 167F. Water to achieve 150F mash temp for 75 minutes.
8.25 lb Muntons Pale Malt - 2 Row - 2.0 SRM
.5 lb Carapils/Dextrine
.5 lb Crystal 20
1 oz Centenial (Pellets) @ 60 min
1 tsp Yeast nutrient @ 25 min
.5 oz of Centenial (Pellets) @ 15 min
1 Whirloc Tab @ 15 min
1 oz Kent Golding Leaf Hops @ 0 min
Use a chiller to drop temp to 75 degrees before transfering to fermenter
I did pre-heat my mash tun to 120 degrees for 15 minutes and I use a 5 gallon igloo cooler with a 1/2 valve and screen from (Northern Brewer). My grain temp. was 68F. and both numbers above were used in the calculation by BS
My OG into the boiler was 1.055 when I was expecting 1.044
Final gravity was 1.060 into the fermenter
My grain mill does a real fine job (maybe to fine of a grind at that) but is not flour when I am done grinding. No problems with drainage at all.
So do you think it could be the grind consistency and the fact that my mash tun was not sufficiently pre-heated? All temp sensors are in calibration range.
Originally Posted by jjyoung
It's hard to say what happened because you didn't include your grain bill. Without that we can't calculate your mash consistency. I don't think tannin extraction should be impacted by this if you didn't get your mash or sparge temperatures above 170F, also assuming you didn't have too fine of a grind on your grist.
You've certainly ended up with a thinner mash, but you certainly didn't ruin your beer over it. Relax! Have a Beer! :-)
Addition: One thing just occurred to me. While I don't use it, I understand BeerSmith is pretty good for calculating strike temperaturs. If you missed it by that much you need to determine what went wrong. Some possibilities 1) MT sucked up too much heat...maybe you need to preheat it. 2) Grain temperature off. 3) Other influence due to MT design.
I use a false bottom in mine and have issues with the accuracy of the strike calculations. I usually end up having to use more water than is normally called for. You might want to look at that possibility.