Festmaster
Active Member
What volume do you typically need to start at for a 10 gal batch so you actually have 10 gal after a 60 minute boil?
what about for a 5 gal batch for 60 min?
what about for a 5 gal batch for 60 min?
How much is boiled off?
- Thread starter Festmaster
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I calculated my boil off at about 1 gallon per hour through experimentation. It is a factor of the radius (or diameter) of your brew pot (exposed surface area)
lafolielapper
Well-Known Member
It varies depending on relative humidity, elevation, boil vigor, and surface area of the boiling wort. With that said, a good average is 1.25 gallons more than the intended volume. So 11.25 should be pretty close. You wont know for sure until you actually do a brew day, or practice with boiling down some water for 60 minutes and see what your BOR is. Hope this helps.
Tall_Yotie
Well-Known Member
As said above, you need to figure out the exact amount for yourself through actually doing it, but for me it is about 1 gallon every hour. Batch size does not matter if the strength of the boil is consistent.
Festmaster
Active Member
Thanks for the input!
If I do end up with less than I want after the boil, say like 9 gal for a 10 gal batch, is it ok to just add water so as to bring the volume back up to 10 gal before I ferment it?
If I do end up with less than I want after the boil, say like 9 gal for a 10 gal batch, is it ok to just add water so as to bring the volume back up to 10 gal before I ferment it?
Yes, just be sure to add the extra water before the boil is over so you sanitize it.
Tall_Yotie
Well-Known Member
Or add bottled water (RO) and you don't have to worry about sanitation.
Festmaster
Active Member
That makes sense. didn't even think of that!
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