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-   -   What volume do you aim for? (http://www.homebrewtalk.com/f14/what-volume-do-you-aim-383197/)

GMP428 01-21-2013 02:59 AM

What volume do you aim for?
When doing a typical 5 gallon batch, or 10 or whatever volume your recipe called for; is that the pre fermentation volume, or is it the volume that you go for minus trub loss??? This is something I've always wondered. I myself have pitched yeast with both about 5 gallons of wort as well as a little bit more to give me 5 gallons after fermentation. The differences in the 2 are probably very minute but they are still present. What is the correct volume to have pre Germantown, and iftit really doesn't matter what do a lot of you guys go for and why?

GMP428 01-21-2013 03:01 AM

Pre-fermentation* lol. For some reason my homebrewtalk app was glitchy and I was typing blindly for those last 2 lines.

GilSwillBasementBrews 01-21-2013 03:01 AM

I aim for 5.5 pre ferment so I get a full 5 in the keg.

MalFet 01-21-2013 03:05 AM

Most recipe calculations are done on the final volume in the kettle at the end of the boil.

Turner5 01-21-2013 03:13 AM


Originally Posted by GilSwillBasementBrews (Post 4807993)
I aim for 5.5 pre ferment so I get a full 5 in the keg.

I do this as well.

Neerdowell 01-21-2013 03:18 AM

This is something I've been striving to get a better handle on every time I brew. I'm getting more and more familiar with my kettle (8 gal Megapot) and have found that if I collect 6 gallons and 1 quart from the lauter tun and maintain a "vigorous boil" for 60 min, I'll have roughly 5 gallon 1 qt after cooling and will end up with 5 gallons in the fermentor(s).

This is a wide pot, and I think I'm loosing a lot to evaporation during the boil, but if I turn the heat down any more my boil will be less than "vigorous."

Stauffbier 01-21-2013 03:20 AM

I design 95% of my recipes myself, so I aim for whatever I want to end up with post-fermentation. That amount varries depending on the size fermenter I have available usually. I brew from 1 to 6 gallons and anywhere in between. When I start kegging I'll likely design recipes so I end up with 5+ gallons of finished product.

logdrum 01-21-2013 03:21 AM

I aim for 5 gal in the keg, which requires about 6 gal post boil on my system for an IPA, less hoppy beers a bit less.

Calder 01-21-2013 04:03 AM

I design my recipes for 7 gallons. I put 7 gallons in the fermenter

weirdboy 01-21-2013 04:19 AM

I usually target the amount that ends up in the keg after fermentation. So, for IPAs with lots of dry hops, I will usually design the recipe for 5.5-6 gallons into the fermenter. For other stuff that's going to ferment for a week and then go straight to the keg, (e.g. a mild) I will usually have 5.25 gallons into the fermenter, and leave about a quart behind as trub.

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