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Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 6:13 pm
by Beer-lord
This is my kettle with about 12.5 gallons of beer. Does it look like there's 2.5 gallons of space left? I'm thinking it's not really a true 15 gallon kettle.
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 7:15 pm
by BlackDuck
Yikes...that looks pretty tight. I'm not sure you could fit another 2.5 gallons either. How wide is it?
I'm sure your OCD will kick in eventually and you'll measure 15 gallons of water to see if it fits. There is no way possible that you will sleep until you know for sure.
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 7:43 pm
by Beer-lord
It's 17" wide by 16" high. Who's the math wiz who can figure out that?
My OCD has been cured. It's amazing what a few beers on a day off can do.
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 7:46 pm
by Inkleg
How will he know for sure that what he is using to measure each gallon is accurate?
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:03 pm
by Beer-lord
I'm Irish/Italian, does that help?
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:03 pm
by BigPapaG
Volume of a (vertical) cylinder...
V = pi * r2 * h
So...
V = 3.14159 * (8.5 inches * 8.5 inches) * 16 inches
V = 3631.68 in3 (that's inches cubed)
That should answer your question!
What? No, not yet?
Ok, then...
1 cubic inch = 0.00432900433 US gallons
Sooo... 3631.68 in3 * 0.00432900433 gallons = 15.72 gallons
Oh yeah, answer is yes and I need a beer!
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:42 pm
by RickBeer
Nothing but air! BigPapaG for the score!
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:45 pm
by Beer-lord
My head and my arse hurts after that. I suck at math but excel in history.
So you're saying my pot is more than 15 gallons?
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:46 pm
by BigPapaG
Yup, almost 3/4 gallon more... If your measurements were correct, that is...
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:53 pm
by Beer-lord
Yep, they are correct. I can still use a tape measure even though I can't do calculus.
Thanks for the brain buster info.
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 8:54 pm
by BigPapaG
My pleasure!
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 9:03 pm
by alb
WTG, BigPapaG!
I may be late to this party, but when the wort expands as it boils, I imagine you'll need every bit of that "excess" space over 15 gal.
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 9:07 pm
by BigPapaG
BTW:
Every inch of level increase in THAT pot is 0.9825 gallons...
So, for future use, you can approximate a gallon an inch and only be off by a quart on a full pot!
Re: Do I really have a 15 gallon kettle?
Posted: Mon May 26, 2014 9:08 pm
by BigPapaG
alb wrote:WTG, BigPapaG!
may be late to this party, but when the wort expands as it boils, I imagine you'll need every bit of that "excess" space over 15 gal.
^^^^ This... So true!