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Boil Off
This tool estimates post boil wort volume and gravity.
Notes:
Tool is available only for
registered
users.
Choose gravity unit.
Enter starting wort volume (in any volume unit - i.e. liters, gallons, barrels, ...) and starting gravity.
Enter boil time in minutes, hourly evaporation rate
*
(10% is good starting value) and cooling shrinkage rate (in doubt enter 4%).
Tool estimates post boil gravity (in chosen gravity units), evaporation per hour, total boiled off volume, cooling shrinkage volume and final post boil volume including trubs (in volume units used for starting volume).
*
Note
: How to determine
Hourly evaporation rate
? Measure hot wort volume just before boil starts (for example 30 liters). After one hour of boil time measure wort volume again (for example 24 liters) which gives us 6 liters of hourly boil-off.
Hourly evaporation rate = Hourly boil-off / Starting volume = 6 / 30 = 0.2 =
20%
Choose units
plato
SG
Invalid Input
Original Volume
(*)
Enter value in a range between 0 and 1000
Original Gravity
(*)
Enter value in a range between 1 and 50
Boil Time (min)
(*)
Enter value in a range between 1 and 300
Evaporation Rate
(*)
Enter value in a range between 0 and 100
Shrinkage Rate
(*)
Enter value in a range between 0 and 100
Evaporation / Hour
Invalid Input
Total Evaporation
Invalid Input
Cooling Shrinkage
Invalid Input
Final Volume
Invalid Input
Final Gravity
Invalid Input
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