jonny24v01
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- Jun 20, 2017
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This is my second BIAB batch. I did my own cream ale, i'll post results later.
-8lbs 2 row
-1lb flaked maize
-0.5lbs honey malt
-0.75lbs crystal 15L
-0.25lbs flaked oats
1oz cascade(60 min)
1/2oz cascade(5min)
1/2oz cascade whirlpooled in
+1/2 whirlfoc and some yeast nutrient near the end
White labs 001 with a half liter starter(i get really fresh yeast from my supplier)
I used biab calculator to get my water volumes and strike temperature. At the end i adjusted, as per my setup for the next batches, that my grain absortion is 0.08gal/lb and my water boil-off rate is 1.4 gal/hr. The default values left me with 6.75 gallons pre-boil. So i boiled it down a little before adding hops
Anyhow, to the point now. My 1st batch, i had a decent size temperature drop during the mash even in 85 degree weather and stirring periodically. This batch i put 4 layers of reflectix insulation around my ss brewtech 10 gallon gallon and wrapped a wool blanket around it. The temp didnt drop a degree for 10 mins when i started my mash at 153 degrees, then i stirred. After another 20 mins it was down to 146 degrees. I took the lid off and stirred again. I applied the heat on nearly the lowest the bayou classic jet burner would go for about 5 mins and stirred and it was at 152 degrees. 15 mins later(45 min into mash) it was down to 145 degrees. I stirred and it came up to 150 degrees and i let it finish.
I have not been doing a sparge cause hitting the target gravity is not an issue especially with how fine the grains i get are. I figure i wont need to apply heat at all and just stir every 15 mins if i use a smaller volume of water and add sparge water over the grain to get to my 6.5 pre-boil volume. However with a smaller volume of water there would be more air space in the kettle. Would it be in my best interest to use about 2 qts/lb of grain and do a sparge to get to the correct volume of water or just insulate a little more and stir every 15 minutes
-8lbs 2 row
-1lb flaked maize
-0.5lbs honey malt
-0.75lbs crystal 15L
-0.25lbs flaked oats
1oz cascade(60 min)
1/2oz cascade(5min)
1/2oz cascade whirlpooled in
+1/2 whirlfoc and some yeast nutrient near the end
White labs 001 with a half liter starter(i get really fresh yeast from my supplier)
I used biab calculator to get my water volumes and strike temperature. At the end i adjusted, as per my setup for the next batches, that my grain absortion is 0.08gal/lb and my water boil-off rate is 1.4 gal/hr. The default values left me with 6.75 gallons pre-boil. So i boiled it down a little before adding hops
Anyhow, to the point now. My 1st batch, i had a decent size temperature drop during the mash even in 85 degree weather and stirring periodically. This batch i put 4 layers of reflectix insulation around my ss brewtech 10 gallon gallon and wrapped a wool blanket around it. The temp didnt drop a degree for 10 mins when i started my mash at 153 degrees, then i stirred. After another 20 mins it was down to 146 degrees. I took the lid off and stirred again. I applied the heat on nearly the lowest the bayou classic jet burner would go for about 5 mins and stirred and it was at 152 degrees. 15 mins later(45 min into mash) it was down to 145 degrees. I stirred and it came up to 150 degrees and i let it finish.
I have not been doing a sparge cause hitting the target gravity is not an issue especially with how fine the grains i get are. I figure i wont need to apply heat at all and just stir every 15 mins if i use a smaller volume of water and add sparge water over the grain to get to my 6.5 pre-boil volume. However with a smaller volume of water there would be more air space in the kettle. Would it be in my best interest to use about 2 qts/lb of grain and do a sparge to get to the correct volume of water or just insulate a little more and stir every 15 minutes