Hi there. A beer brewing and loving Swede here. Hence the "Swinglish".
I am fairly sure that this information is in here somewhere but it is a vast place to look trough. Searching demands knowledge on what key words to search for. So I beg your forgiveness och hope for some help on my issues.
Quite new to brewing. Did my 11th batch two days ago. And that was also my first BIAB batch. I am intrigued by the, supposedly, simpleness. But, and that is a very large dito, it makes to small batches.
I have a 30 liter (8 gal) pot. I want 25 liters (6.6 gal) into the fermenter. According to BeerSmith I need 35 liters (9.2 gal) of mashwater, wich of course is not possible. Maxi-biab is one way to go as I understand. But if I want to go with the simpleness of biab? What to do?
* Mash in with the most possible volym of water and later add the missing liters?
* Mash with more grains to get a higher gravity and then dilute during boil?
Is any obove the way to go?
/C
Post #2 made 12 years ago
Hi CederBusch, your English fine!
You do have some options to get a larger volume, but each one has a trade off compared to having the size of pot that can take a full volume BIAB.
The higher the gravity brew, the more grain is required, but it becomes less efficient (so even more is required). So this method costs more grain in order for you to dilute it. Another trade off is quality, there will be a point at which further dilution will cause a reduction in beer quality, so just bear in mind that there will be limits to what can be achieved.
Have you tried using the BIABacus yet? This will be invaluable in working out what volumes you can achieve.
Also, it would help if we knew what gravity wort you want at 25 litres.
You do have some options to get a larger volume, but each one has a trade off compared to having the size of pot that can take a full volume BIAB.
The higher the gravity brew, the more grain is required, but it becomes less efficient (so even more is required). So this method costs more grain in order for you to dilute it. Another trade off is quality, there will be a point at which further dilution will cause a reduction in beer quality, so just bear in mind that there will be limits to what can be achieved.
Have you tried using the BIABacus yet? This will be invaluable in working out what volumes you can achieve.
Also, it would help if we knew what gravity wort you want at 25 litres.
G B
I spent lots of money on booze, birds and fast cars. The rest I squandered
I've stopped drinking, but only when I'm asleep
I ONCE gave up women and alcohol - it was the worst 20 minutes of my life
I spent lots of money on booze, birds and fast cars. The rest I squandered
I've stopped drinking, but only when I'm asleep
I ONCE gave up women and alcohol - it was the worst 20 minutes of my life
-
- SVA Brewer With Over 100 Brews From Great Britain
-
Post #3 made 12 years ago
I nearly posted what I typed below but Mally beat me to it
"I think to answer your question have a read of PP's great post about the Sweet Liquor Shop
http://www.biabrewer.info/viewtopic.php ... hop#p31499
This should help you make your mind up about which method to follow.
I personally would top up during the boil but I'm not sure if 25 litres is possible, one of the more expeienced guys should be able to help you more with that."
"I think to answer your question have a read of PP's great post about the Sweet Liquor Shop
http://www.biabrewer.info/viewtopic.php ... hop#p31499
This should help you make your mind up about which method to follow.
I personally would top up during the boil but I'm not sure if 25 litres is possible, one of the more expeienced guys should be able to help you more with that."
Last edited by alymere on 29 Oct 2013, 21:32, edited 2 times in total.
-
- SVA Brewer With Over 20 Brews From Great Britain
-
Post #4 made 12 years ago
Thank you guys!
Well, I had a look at BIABacus. That´s actually the reason I registered to this forum. It was a mouthfull to look at so I put it aside. But I guess I should give it a try.
That liquor shop story explained it good. I now see the issue. So, to sum up, if I want easy brewing according to BIAB I should settle with less volume. Should I want more volume, the second simplest way is maxi-biab in which I basicly do 2 mashes and add them to one another.
Maybe 25 liters is to over shoot, but lets say at least 23 liter should be manageable. I usually brew normal gravity beers. typically 1.050-1.054.
Well, I had a look at BIABacus. That´s actually the reason I registered to this forum. It was a mouthfull to look at so I put it aside. But I guess I should give it a try.
That liquor shop story explained it good. I now see the issue. So, to sum up, if I want easy brewing according to BIAB I should settle with less volume. Should I want more volume, the second simplest way is maxi-biab in which I basicly do 2 mashes and add them to one another.
Maybe 25 liters is to over shoot, but lets say at least 23 liter should be manageable. I usually brew normal gravity beers. typically 1.050-1.054.
Post #5 made 12 years ago
A single mash in your 30 L pot, for a 1.055 beer, could yield 19 L into the fermenter. That would put you at about 1.3 cms of headspace during the mash and also adding 4 L of water into the fermenter, per the BIABacus.Cederbusch wrote:Thank you guys!
Well, I had a look at BIABacus. That´s actually the reason I registered to this forum. It was a mouthfull to look at so I put it aside. But I guess I should give it a try.
That liquor shop story explained it good. I now see the issue. So, to sum up, if I want easy brewing according to BIAB I should settle with less volume. Should I want more volume, the second simplest way is maxi-biab in which I basicly do 2 mashes and add them to one another.
Maybe 25 liters is to over shoot, but lets say at least 23 liter should be manageable. I usually brew normal gravity beers. typically 1.050-1.054.
EDIT: 17.78 L of boiled wort, 19 L pitchable wort.
MS
Last edited by Mad_Scientist on 30 Oct 2013, 03:35, edited 2 times in total.
-
- SVA Brewer With Over 100 Brews From United States of America
-
Post #6 made 12 years ago
Maybe I should tell you how my first BIAB really went. I made a recepie with BrewMate, a Kölsch (my wife is German and I lived i Cologne for a time and got to enjoy this beer).
The theory
Boil volume: 28 liters (7.4 gal)
Post boil and chill volume 23 liters (6 gal)
Grain: 4.9 kg (10.8 lbs)
Est OG: 1.049
Reality
23 liters (6 gal) of mash water for 90 min
Sparged 7 liters (1.8 gal) over the grains and pressed the bag. This gave aprox. 28 liters boil volume.
Into the fermenter I finally had almost 20 liters with at OG of 1.054. I probably boil off a couple of liters and should add them during boil.
This metod worked ok I think, but it would of course be even nicer if I could skip this extra sparge step.
The theory
Boil volume: 28 liters (7.4 gal)
Post boil and chill volume 23 liters (6 gal)
Grain: 4.9 kg (10.8 lbs)
Est OG: 1.049
Reality
23 liters (6 gal) of mash water for 90 min
Sparged 7 liters (1.8 gal) over the grains and pressed the bag. This gave aprox. 28 liters boil volume.
Into the fermenter I finally had almost 20 liters with at OG of 1.054. I probably boil off a couple of liters and should add them during boil.
This metod worked ok I think, but it would of course be even nicer if I could skip this extra sparge step.
Last edited by Cederbusch on 30 Oct 2013, 15:25, edited 2 times in total.
