Hi - I'm awaiting the grain to arrive before starting my first maxi-biab attempt and am looking for some reassurance I suppose that I am on the right track with my process.
I have an 18l electric urn with a 30cm diameter and about 5 cm of dead space above the max line. Having used the maxi-biab calc I expect to be able to fit 15l of water and 5.7kg of grain into the mash. After mash I will sparge with just boiled water upto roughly 7 or 8 l to take the urn back to capacity. After the 90min boil I should have roughly 17l of wort to transfer to my FV which I should be able to top up to 20l and obtain a SG of 1.016. The recipe is an American style hoppy IPA and before transferring the wort I will use a chillder to take the temp down to pitching temp.
Hoping that I have most things covered but if anything glaring is missing please let me know.
Cheers!
Post #2 made 14 years ago
I'm not a Maxi brewer but I have noticed one thing. You state your S.G as 1.016 I'm assuming its a typo.
I'm sure a Maxi brewer will pick this thread up for you and give you the
if its ok
Yeasty
I'm sure a Maxi brewer will pick this thread up for you and give you the
if its okYeasty
Why is everyone talking about "Cheese"
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- SVA Brewer With Over 50 Brews From Great Britain
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Post #4 made 14 years ago
Hi Moctez
I've just noticed that you've used the Maxi-Biab Calc. Can you attach it to your post? It will speed up getting an answer if you can.
Yeasty
I've just noticed that you've used the Maxi-Biab Calc. Can you attach it to your post? It will speed up getting an answer if you can.
Yeasty
Why is everyone talking about "Cheese"
-
- SVA Brewer With Over 50 Brews From Great Britain
-
Post #5 made 14 years ago
Hi yeasty, i've attached it now I expect there to be some mistakes as this is the first go I've had on this calculator. I've also used hopville and the link is http://hopville.com/recipe/880195/ameri ... e-ipa-biab.
cheers.
cheers.
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Post #6 made 14 years ago
Hi moctez
I've altered the brew length figure to give you a volume into fermenter of 20L (19.98) which is what you are looking for I think.
This gives you a grain bill of 5.3kg which according to the Maxi page on the sheet will give you a mash volume of 19.09L. Your pot I recon has a total volume of 21.5L including the 5cm above the 18L max line so you should be ok. I haven't adjusted your efficiency figure.
After mash out you will have 12L leaving you with 6L for sparging if you are just taking it up to 18L altho the calculator is assuming 19L.
I've also tweaked the hop bill which now reflects the original recipe IBU. Its a bit Higher by a couple of points but this may be due to formulas.
Have a look and see if it makes sense
Yeasty
I've altered the brew length figure to give you a volume into fermenter of 20L (19.98) which is what you are looking for I think.
This gives you a grain bill of 5.3kg which according to the Maxi page on the sheet will give you a mash volume of 19.09L. Your pot I recon has a total volume of 21.5L including the 5cm above the 18L max line so you should be ok. I haven't adjusted your efficiency figure.
After mash out you will have 12L leaving you with 6L for sparging if you are just taking it up to 18L altho the calculator is assuming 19L.
I've also tweaked the hop bill which now reflects the original recipe IBU. Its a bit Higher by a couple of points but this may be due to formulas.
Have a look and see if it makes sense
Yeasty
You do not have the required permissions to view the files attached to this post.
Why is everyone talking about "Cheese"
-
- SVA Brewer With Over 50 Brews From Great Britain
-
Post #7 made 14 years ago
Yeasty you're a star thanks for the help. I am going to tone down the bittering in the recipe which is a bit high but other than that I'm hopeful this will turn out well.
Post #8 made 14 years ago
I would actually set the mash limit to 1cm or so, but you know your urn better than I
The calc is saying to reserve 1.6L of the water before adding your grain, then add that back. Good idea that
I'm a bit concerned about boilovers with a 3cm boil limit, but I guess you'll find out
The hop estimates are higher for the maxi biab because the average SG during the boil is 1.074 which will reduce hop utilization
The calc is saying to reserve 1.6L of the water before adding your grain, then add that back. Good idea that
I'm a bit concerned about boilovers with a 3cm boil limit, but I guess you'll find out
The hop estimates are higher for the maxi biab because the average SG during the boil is 1.074 which will reduce hop utilization
Fermenting: -
Cubed: -
Stirplate: -
On Tap: NS Summer Ale III (WY1272), Landlord III (WY1469), Fighter's 70/- II (WY1272), Roast Porter (WY1028), Cider, Soda
Next: Munich Helles III
5/7/12
Cubed: -
Stirplate: -
On Tap: NS Summer Ale III (WY1272), Landlord III (WY1469), Fighter's 70/- II (WY1272), Roast Porter (WY1028), Cider, Soda
Next: Munich Helles III
5/7/12
Post #9 made 14 years ago
Great reply Stuxstux wrote:I would actually set the mash limit to 1cm or so, but you know your urn better than I
The calc is saying to reserve 1.6L of the water before adding your grain, then add that back. Good idea that
I'm a bit concerned about boilovers with a 3cm boil limit, but I guess you'll find out
The hop estimates are higher for the maxi biab because the average SG during the boil is 1.074 which will reduce hop utilization
Last edited by hashie on 18 Sep 2011, 17:11, edited 5 times in total.
"It's beer Jim, but not as we know it."
Post #10 made 14 years ago
Thanks for the input gents. Yes it makes sense that a higher sg will reduce hop utilisation so maybe I won't cut back too much. I want to avoid a boil over if poss I've heard that a cold water spray just before works well.
Post #11 made 14 years ago
when the protiens threaten a boil-over... you can skim, a hair dryer, spray water on it, turn the heat down during hot break, use larger pot, or foam control.
MoRdAnTlY [Mr. Wolf '91 - '11]
Post #12 made 14 years ago
Careful.If you get to close to the top you will make a real mess when you put your lid on for the mash.
AWOL
Post #13 made 14 years ago
Yes, it depends on your lid. Mine clears the mash if the mash is 1cm below the lip
Fermenting: -
Cubed: -
Stirplate: -
On Tap: NS Summer Ale III (WY1272), Landlord III (WY1469), Fighter's 70/- II (WY1272), Roast Porter (WY1028), Cider, Soda
Next: Munich Helles III
5/7/12
Cubed: -
Stirplate: -
On Tap: NS Summer Ale III (WY1272), Landlord III (WY1469), Fighter's 70/- II (WY1272), Roast Porter (WY1028), Cider, Soda
Next: Munich Helles III
5/7/12
