S steve25 Member Joined Jan 30, 2010 Messages 23 Reaction score 0 Location michigan Nov 22, 2010 #1 how much higher will o.g. be after boil, compared to out of mash tun?
Walker I use secondaries. :p HBT Supporter Joined Sep 8, 2005 Messages 10,982 Reaction score 122 Location Cary Nov 22, 2010 #2 steve25 said: how much higher will o.g. be after boil, compared to out of mash tun? Click to expand... it depends on how much volume you have before and after the boil. example: if you measure 1.040 gravity in 7 gallons of wort in the kettle, your wort contains a total of: 40 * 7 = 280 gravity points. If you boil this down to 5 gallons, those 280 points will be spread out in 5 gallons, so the gravity after the boil will be: 280 / 5 = 56 Leaving you with 1.056 gravity on the 5 gallons.
steve25 said: how much higher will o.g. be after boil, compared to out of mash tun? Click to expand... it depends on how much volume you have before and after the boil. example: if you measure 1.040 gravity in 7 gallons of wort in the kettle, your wort contains a total of: 40 * 7 = 280 gravity points. If you boil this down to 5 gallons, those 280 points will be spread out in 5 gallons, so the gravity after the boil will be: 280 / 5 = 56 Leaving you with 1.056 gravity on the 5 gallons.
D devilishprune Well-Known Member Joined Mar 26, 2010 Messages 1,241 Reaction score 15 Nov 22, 2010 #3 C1V1=C2V2 is a brewer's best friend. C1=(gravity)-1 preboil and V1 is preboil volume. C2=(gravity)-1 postboil and V2 is postboil volume.
C1V1=C2V2 is a brewer's best friend. C1=(gravity)-1 preboil and V1 is preboil volume. C2=(gravity)-1 postboil and V2 is postboil volume.