I just went back to all grain brewing and have been measuring the temp loss on my mash tun. I have a 48 quart Coleman cooler in the pictures below.
My last batch was a Cream Ale. I had 8 lbs of grain and 2.5 gallons of strike water. I was mashing at 150F and measured a 8 degrees F loss over an hour. Ambient temps were 75 degrees that day.
Today I am working on a Berliner Wiess doing decoction mashing. During a 45 minute wait at 146F I say a 9 degrees F loss, this would be 12 degrees over an hour. This batch had 7.3 lbs of grain and 2.28 gallons of strike water. Ambient temps are 80 degrees today.
Does this make sense? It could be that my thermometer is wonky but it seems to read boiling fine.
My last batch was a Cream Ale. I had 8 lbs of grain and 2.5 gallons of strike water. I was mashing at 150F and measured a 8 degrees F loss over an hour. Ambient temps were 75 degrees that day.
Today I am working on a Berliner Wiess doing decoction mashing. During a 45 minute wait at 146F I say a 9 degrees F loss, this would be 12 degrees over an hour. This batch had 7.3 lbs of grain and 2.28 gallons of strike water. Ambient temps are 80 degrees today.
Does this make sense? It could be that my thermometer is wonky but it seems to read boiling fine.