Post #501 made 13 years ago
Post-boil volume was most definitely measured prior to chilling; I was not that comfortable with the idea of putting a dip stick
into cooled wort, especially as my dip stick is marked 22mm PVC pipe.

Rens

Post #502 made 13 years ago
rens wrote:Apologies for the slow response, I've been travelling.

Water in was 35.33 litres measured by weight.
Pre- boil was 34liters, at 1.031 though I might have dropped in another 200ml from late drips from the bag back in, mid boil.

It's tasting quite good now! Aggressively hoppy, but that will smooth out In the keg I reckon. The 007 yeast is giving it a nice dry finish. It's down to about 1.014 and still working.
Did you measure your pre-boil by weight too?
Last edited by stux on 28 Mar 2012, 16:38, edited 9 times in total.
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

Post #503 made 13 years ago
stux wrote:
Did you measure your pre-boil by weight too?
Nope, measured by dip stick, but I did check the initial measurement on the dip stick. Certainly there could be some error there, aside from the eyesight-related loss of precision.

Rens
Last edited by rens on 28 Mar 2012, 17:08, edited 9 times in total.

Post #504 made 13 years ago
stux wrote:Did you measure your pre-boil by weight too?
Stux, I think you'll find 'The Stag' is the only brewer who has his kettle on scales :lol:. The rest of us have to use our hydrometers to measure our weight which tells us our gravity :P.

Okay Rens, theoretically, EIK and post-boil efficiency should match each other. In reality though, on a single brew, we nearly always get discrepancies. Having both of these efficiencies match within about 3.5% is good though. From that we can see that your efficiency is a little on the low side. I would have liked to have seen it closer to the 83.5% EIK.

From a single brew we can't really tell much. For example, incorrectly weighed grain is a common reason for low efficiencies. Another possible reason is that the grain used has less extract content and/or higher moisture content than being used in the calculations. (See Some Common Reasons for a Low Efficiency Reading.)

From that list, you'll find that there are several things you could double-check before your next brew. Personally, I'd just do another brew first to see if the low efficiency problem persists. If it did, then I'd start working my way through the list. Maybe for now, just check that your bag is big enough (number 6 on that list). If you can get some pH strips (or a roll) before your next brew, maybe grab some of those as well.

Even though your OG was lower than expected, you'll still find the beer to be yummy. That goes for most recipes so you certainly have nothing to worry about.

;)
PP
Last edited by PistolPatch on 28 Mar 2012, 18:50, edited 9 times in total.
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Post #506 made 13 years ago
Yep rens, brew on and we'll look forward to hearing how your first real taste test turns out and to hearing how your next numbers go.

:luck:
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Post #507 made 13 years ago
Hey guys, just a few questions,
Finally had a few hours to brew my Coopers best extra clone.

Things seemed to go pretty well, no major issues. My pre boil volume and gravity were pretty spot on (16L at 1.049) but my post boil volume and OG are way off. I was hoping for 10L in at 1.067, ended up with 7L at 1.092.

Did i need to add extra water?

Bek

Post #508 made 13 years ago
Hi there Bek,

I assume that 7 L was what you got in the fermenter. Assuming you had a bit of kettle trub then your efficiency into the kettle and your post-boil efficiency match which is good.

What it looks like to me is a high evaporation rate or you might need to allow more for kettle trub. Is your kettle wide?

If you do have a high evaporation rate or a lot of trub, yep, you'll need to add more water. (Do this by incresing your evaporation settings and kettle loss on the calculator.) Everything else will stay the same although your efficiency will go up a tad as you'll be using more water to rinse the grain.

This wasn't your first brew was it Bek? Did this happen on the other brews?

:peace:
PP
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Post #509 made 13 years ago
Hi PP,

This is my second BIAB, there was only a very small amount if trub left and this didnt happen with my last brew but funnily enough just reading your post reminded me if something - i had a few new hot plates replaced recently. So it probably is just from more evaporation.
I will try play around with the calculator - i have been avoiding it as numbers scare me!

Thanks as always for the help PP

Bek

Post #510 made 13 years ago
Don't be worried about the numbers as we can always check them here for you. Also, don't be scared to add 2.5 L water to dilute your brew down to the right gravity. You can probably still do that now if your tap water is okay. If you are worried, boil 2.5 L, let it cool and then add it. I'd definitely add the water asap though.

I should have mentioned that last night :dunno:.

:peace:
PP
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Post #511 made 13 years ago
Ok i went and added the extra 1.5L of tap water, i figured sydney water is pretty safe. It came down to 1.070 which sounds a lot better!

Now i just have to sit back and hope for the best.

Once again, thanks PP - dont know what i'd do without this site!

Bek

Post #512 made 13 years ago
Good on you :peace:. I thought it might have taken more like 2.5 L to get it down but 1.070 sounds great. Let us know how it ends up tasting and also let us know before your next brew next so we can have a look at improving the numbers a little.

Cheers!
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Post #513 made 13 years ago
Will do PP! Should be drinkable in about a month.

My last biab was a fullers ESB clone that i had no end of trouble with but its drinking pretty well.
Not much of a clone but it a decent ESB.

Now i just have to decide what to brew next, pretty sure it will be dark! :yum:

Bek

Post #514 made 13 years ago
Hi again Bek :P,

I'd forgotten your post on the ESB drama - lol. Great to hear you are enjoying it.

Okay, if you want a dark beer then I think the Schwarzbier here is an excellent beer. (When I looked up the link I noticed that stux was reading that topic. I wonder if he is going to biggest the same thing? :think:). Two things...

Firstly, it's a really interesting beer, especially that recipe. It has many subtle flavours in it but is also very easy-drinking. I think any 'stoutgirl' will really appreciate the chocolate and roasted malts in it :).

Secondly, that recipe is solid. I've brewed it many times and substituted this for that and it always turns out well. I think you'd enjoy it. Otherwise, let us know what else you have in mind.

Cheers,
PP
Last edited by PistolPatch on 03 Apr 2012, 17:10, edited 9 times in total.
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Post #515 made 13 years ago
Hey PP :).

The Schwarzbier recipe looks good but i must say, I've never had a Schwarzbier that i really enjoyed. They all seem to have a Tooheys old taste, which is pretty horrible. Mind you I haven't tried too many.

Big fan of the stouts that have that lovely bite of bitterness! Been having quite a few imperial stouts of late, and one of my fav's is the Nogne imperial stout. Beautiful body on that one.

The Coopers Clone hopefully will be a good session stout but would like to brew something thats a bit heavier in taste and body.

Was also playing with the idea of a nut brown using pistachios. Don't think its quite viable but i like to daydream. :roll:

Bek

Post #516 made 13 years ago
Dreaming is good! That schwartz is definitely not like a Tooheys Old. There's a lot more to it.

Anyway, it looks like your nesxt brew ia an imperial stout :). See if you can google some recipes and if you find some that look good, we can see if we can scale them.

:peace:
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Post #517 made 13 years ago
OK, so as it was time for the previous black sheep brew to go into the corny, I brewed it again. This time I reckoned on 75% efficiency and a 19L brew length, adjusted the calculator accordingly, and got really close to the planned numbers. Here are my notes and I attach the calculator updated for your pleasure.

Im not sure why Im ending up with less efficiency into the kettle than I should, but Im losing a lot less to
buffer than predicted, so am ending up with extra beer for bottling. I suspect water/PH issues...next time I'll test
that out.

Thanks for all the help on this, people.

Rens


BIAB Black Sheep Take 2

calculator @ 75% efficiency

started with 34.5 ltrs of water, 4.783 kg of grain

Mash:
90 mins @ 66 (was then 1.033)
strike temp 69, temp at end of mash 66
Was then 1.033 gravity

10 mins mashout at 75
was then 1.035 gravity

About 31ltrs (at 75) after loss to grain

Boiled for 90 minutes: hops added at 90 and at 10 (bagged).
At 10 also added irish moss and yeast nutrient

SG at end of boil 1.45
volume at end of boil 25L (at 100)

reused (2nd generation) WLP007 from previous, weaker black sheep batch.
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Post #518 made 13 years ago
Hi rens

Nice to see you brewing the black sheep again :thumbs: you must like it :drink:

As to your efficiencies, what brand of base malt are you using ? There has been some discussions on the uk forums about low yields from Bairds malts. I'll check over your notes and calc when I get home from my weekend away and I'm back on my own PC.

Yeasty
Why is everyone talking about "Cheese"
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Post #520 made 13 years ago
Hi again, finally found a recipe for an imp stout that looks pretty interesting.
What do you guys think? Could it be converted easily?

All-Grain - Naked Island Imperial Stout
Recipe Type: All Grain
Yeast: WLP 007 Dry English Ale
Yeast Starter: 2.8 L w/ stir plate
Additional Yeast or Yeast Starter: N/A
Batch Size (Gallons): 5.5
Original Gravity: 1.096
Final Gravity: 1.022
IBU: 96.7
Boiling Time (Minutes): 60
Color: 47.9
Primary Fermentation (# of Days & Temp): 21 days @ 68F
Additional Fermentation: N/A
Secondary Fermentation (# of Days & Temp): N/A
Tasting Notes: A great balance of roastiness, chocolate, malty sweetness, alcohol and hops.

Type: All Grain
Date: 9/7/2009
Batch Size: 5.50 gal
Brewer: Schweaty
Boil Size: 7.01 gal
Boil Time: 60 min
Brewhouse Efficiency: 65.00

Ingredients

Amount Item Type % or IBU
14.00 lb Pale Malt, Maris Otter (3.0 SRM) Grain 63.64 %
4.00 lb Munich Malt (9.0 SRM) Grain 18.18 %
1.00 lb Caramel/Crystal Malt - 60L (60.0 SRM) Grain 4.55 %
1.00 lb Chocolate Malt (350.0 SRM) Grain 4.55 %
1.00 lb Oats, Malted (1.0 SRM) Grain 4.55 %
1.00 lb Roasted Barley (300.0 SRM) Grain 4.55 %
2.00 oz Columbus (Tomahawk) [14.40 %] (60 min) Hops 63.3 IBU
1.00 oz Williamette [4.70 %] (10 min) Hops 3.7 IBU
1.00 oz Williamette [4.70 %] (5 min) Hops 2.1 IBU
1.00 oz Williamette [4.70 %] (0 min) Hops -
1.10 tbsp PH 5.2 Stabilizer (Mash 60.0 min) Misc
1.10 items Whirlfloc Tablet (Boil 15.0 min) Misc
1.10 tsp Yeast Nutrient (Boil 15.0 min) Misc
1 Pkgs Dry English Ale (White Labs #WLP007) Yeast-Ale

Beer Profile

Est Original Gravity: 1.095 SG
Measured Original Gravity: 1.096 SG
Est Final Gravity: 1.022 SG Measured Final Gravity: 1.022 SG
Estimated Alcohol by Vol: 9.54 % Actual Alcohol by Vol: 9.71 %
Bitterness: 69.1 IBU Calories: 449 cal/pint
Est Color: 45.0 SRM


Mash @ 155 for 1 hour.

Bek

Post #521 made 13 years ago
That's an easy one Bek - no sugars!!!! (And all the other info looks great :peace:.)

How do you feel about typing all the grains (sheet 2 'Grain Bill' left hand side) and hops (sheet 3 'Hop Bill' left hand side) into the calculator and then posting the file up?

Once they are typed in, there are only about 4 other numbers we need to change to get it scaled for you.

Sound okay or should we step through this one? I haven't stepped you through yet so just let me know which way you'd like to go. (Typing in the above though is pretty much all the work.)

:think: :)
PP
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Post #522 made 13 years ago
Ok so i attempted to use the calculator, it looked so scary i admit to opening it and closing it quite a few times before actually giving it a go :?

Bek
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Post #523 made 13 years ago
Hi Bek,I haven't gone over this real close yet,but was wondering if you were really planning for a 23 liter batch.You have been doing smaller batches haven't you?
AWOL

Post #524 made 13 years ago
[EDIT: Bek, after writing the below, I certainly don't expect you to be able to follow everything. The BIABacus will take some of the trickier work below out and be much easier to follow. I've put a note in at the end re this.]
stoutgirl5 wrote:...it looked so scary i admit to opening it and closing it quite a few times before actually giving it a go :?
:lol:.

Good on you Bek!

I forgot it was all in US units. You must have had fun converting those :roll: (I can't get The Converter working in Chrome. Used to :scratch:). ADMIN NOTE: Unfortunately the edget being referred to here is no longer available. Please read this post for alternatives.

There's not much we have to do now. Just need to adjust things for your size brewing as Lylo mentioned...

1. First, the grain bill sheet looks all good. The hop sheet needs a bit more info. In column C we need to put the AA5 of the hops in the original recipe - 14.4%, and 4.7%. I'm going to copy these to column J as well. You can ring your home brew shop if you like and foind out what AA% the hops they have in stock are and change these numbers in column J. (Also had to change G14 to 0.1 as The Calculator needs some number above 0).

2. On the grain bill, I have moved your numbers from B to D but that's all good.

Now that's all okay we do these things...

1. I had to do a bit of detective work however it looks like their batch size means end of boil volume. So, I have put this into Cell E8 on the Hop Bill.

2. All we have to do now is on the Volumes sheet change the Brew Length to 10L as this is what you brew. I'm going to over-write the End of Boil Efficiency to 65% because this is a very high gravity brew. I've then typed in 1.095 for the End of Boil Gravity (OG) and finally changed the Diameter of Kettle to 30 cms.

So, the amount of grain you need you can see in column G of the Grain Bill sheet. The amount of hops you need (assuming they are the same AA% as the original recipe) can be found in Column I of the Hop Bill sheet.

Now you are probably totally confused!!!! :lol:

If you want me to put it in the BIABacus Recipe Report format we used on your last brews, let me know as I know that understanding The Calculator can be difficult.

;)
PP
Naked Island Imperial Stout - Scaled.xls
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Last edited by PistolPatch on 11 Apr 2012, 19:25, edited 9 times in total.
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Post #525 made 13 years ago
Hi PP and Lylo,
It took me a while but i think i finally understand a bit more about how to use the calculator. Wish i knew why numbers confuse me so much! :headhit:

If you don't mind PP, i think if the recipe is in the BIABacus report i will be able to understand the calculator a bit better. I might try put a few dummy recipes in to try get the hang of it. Can't make you guys help me forever! :roll:

Bek

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