Using a 30 qt (28.3 L) kettle for small batch BIAB

Post #1 made 14 years ago
Hey guys,

I'm planning on buying a new 60 quart kettle for my full entrance into BIAB, but in the meantime I'd like to use the existing equipment I have from my extract brewing days, which is a 30 qt / 7.5 gallon boil kettle. I assume this is too small for full 5 gallon batches (especially for large beers with hefty grain bills), but I was wondering if anyone had used a similarly-sized pot for small batches (3 gallon or 12 L batches). Seems like it would be doable, but I don't know how I'd adjust recipes to accommodate the smaller kettle and final batch size.

Any suggestions and/or experiences for smaller batches?

Thanks guys!

Post #2 made 14 years ago
Good Day Bjork24, I use that size kettle with MAXI-BIAB process for 5gal/23L batches (1.060s.g.) AND MINI-BIAB 3gal/12.5L (1.075s.g) batches with Sparge and get very good results.
I use a 5L kettle for Sparge, but sparge is not always needed.
I once wanted a 15Gal/60L but now don't think I will ever need one!
Honest Officer, I swear to Drunk, I am Not God.
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Post #3 made 14 years ago
Hi this was my first piece of equipment as yours and I was brewed 10-12 quart batches with no trouble just download "Calclulator" http://www.biabrewer.info/viewtopic.php?f=25&t=189 to estimate doable batch sizes regarding volumes .
Also consider that if these volumes are ok with your average consumption you can keep the 30 quart kettle and brew more often in order to have different styles around.
Watch this video also http://vimeo.com/35571624 but take out the quesswork using "calculator" for more predicted results.
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Post #4 made 14 years ago
Thanks for the suggestions, guys. I'm completely new to AG, so I've been reading Palmer's "How To Brew" to get a handle on all the terminology and formulas. I'm still a little confused about a few things, but hopefully I can work through them with the help of this forum. Thanks guys!

Post #5 made 14 years ago
That's exactly what I do. I have a 27 lts pot and usually I end up with 12 lts of beer (or little more) in the bottles.
I use the calculator (sometimes Beersmith 2 also) to scale the reicpes.
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Post #6 made 14 years ago
G'day Bjork

I have a 30 litre urn and I use it to make 20 litre batches. I aim for 25 litres at the end of the boil and put 20-20.5 litres in the no chill cube and the rest is trub. I start the boil with 25 litres and top up during the boil. To start the boil with 25 litres I do a batch sparge after hoisting the bag. I feel I might as well since I am adding water anyway. It's a very easy process.

Cheers
Dick

Post #7 made 14 years ago
Most of the traditional all-grain formulas for water calcs are a waste of time with biab

Just use a calculator to work out your strike volume and away you go

Try this one

http://biabrewer.info/viewtopic.php?f=74&t=1066

You just need to work out your evaporation
Fermenting: -
Cubed: -
Stirplate: -
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