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First all-grain mishaps and possibly successes?

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Brett3rThanU

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Location
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Yesterday I finally did my first all-grain beer (the recipe is below) and it took about 5 hours from start to finish. I know I made a few mistakes, but in the end I had wort and it's bubbling away in the primary. My method included using ~1.25 quart water per 1 lb of grain, so ~4 gallons of water for the mash. I then used ~4 gallons of water for batch sparging, divided into 2 times with 180F water.

10 lb of 2-row
.75 lb of Dextrin Malt
.75 lb Belgian Caramunich
.75 lb German Munich
.5 lb 40L Crystal

1 oz of Perle for bittering
1/4 oz each of perle and Saaz 15 min til end of boil.

Wyeast 1056.

My first mistake was using a thermometer that was reading ~7F too high, but I didn't notice that until it was too late. As a result, my 1 hour mash temp was 147F instead of 154F.

My second mistake was not clamping the tube between the spigot in my cooler and the spigot on the false bottom. It felt snug before I started, but as soon as that hot mash was in there the tube loosened up and came off the spigot. Unfortunately I didn't notice this until I was cleaning up :(

All in all with the above recipe, I ended up with 5.5 gallons of 1.054 worth. That right there puts my efficiency at 65% if my calculations are correct? I came up with 453.75 for total fermentables with the grain, divided by 5.5 (since that's how much wort I ended up with) giving me a maximum OG of 1.0825. I ended up with a 1.054 OG, so 54/82.5 gives me 65% correct? Did I do this correctly?

Soooo, I'm guessing missing my mash temp was a huge factor in my crappy efficiency, right? As far as the false bottom tube disconnected, I was still able to get the worth pretty clear without particles, but what effect might this have on the final product?
 
I would say that its quite possible that missing the mash temp was a culprit in your efficiency... although for a first AG 65% isn't that bad! As for the calculations... I couldn't tell you.. brewhouse efficiency is one of the things of AG brewing I have yet undertaken to fully understand. Good luck in your future brews.:cheers:
 
Well I bottled this beer yesterday and took a FG reading, it had dropped all the way down to 1.006! I of course sampled the beer at this point and it was pretty dry, not much body to it at all, but it had some sweetness to it. It wasn't bad, but lacked body. Surprisingly it was very clear though, I've never bottled a beer that has ran so clear before.

I think my mistake was trusting a faulty thermometer for mash temp, in fact I think I ended up mashing around 148F. Hopefully in the end the beer turns out okay.
 
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