brewfun
Grandmaster Brewer
You can find the exact specific heat of your mashtun with the Mash Adjust tool and a floating thermometer.
Accurately weigh your mashtun.
Accurately measure out 3 gallons of water.
Heat the water to 170 (actually, any temperature will do, but this is closer to brewing).
In the tool:
Starting Water volume: 0
Weight of grain: 0.0001
Starting mash temperature: ambient temperature of the room
Weight of mashtun: as weighed
Mashtun Specific Heat: 0
Water Addition Temp: 170 or the exact temperature you use.
The mash water ratio will read something crazy. Ignore that.
Quickly add the heated water and floating thermometer to the mashtun. Cover and wait 10 minutes.
Read the water temperature.
Input the water temperature as "Target Mash Temperature" in the tool.
Now, simply change the Mashtun Specific heat until the "Water Volume to Add" matches 3 gallons.
That's your mashtun's specific heat!
Accurately weigh your mashtun.
Accurately measure out 3 gallons of water.
Heat the water to 170 (actually, any temperature will do, but this is closer to brewing).
In the tool:
Starting Water volume: 0
Weight of grain: 0.0001
Starting mash temperature: ambient temperature of the room
Weight of mashtun: as weighed
Mashtun Specific Heat: 0
Water Addition Temp: 170 or the exact temperature you use.
The mash water ratio will read something crazy. Ignore that.
Quickly add the heated water and floating thermometer to the mashtun. Cover and wait 10 minutes.
Read the water temperature.
Input the water temperature as "Target Mash Temperature" in the tool.
Now, simply change the Mashtun Specific heat until the "Water Volume to Add" matches 3 gallons.
That's your mashtun's specific heat!