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Post #26 made 11 years ago
by Mad_Scientist
Are you saying you are making a 24 litre batch into fermentor (VIF)? And the original fermentable bill and hop bill?

That would be a 1.064 OG and 40 IBU. There is nothing wrong with that. My Dead Guy clone is around those numbers.
BIABacus PR1.3T Citra Pale Ale 15GalPot -MS (2).xls
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Last edited by Mad_Scientist on 07 Feb 2015, 03:24, edited 1 time in total.
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MY FIRST BIAB AND FIRST ALL GRAIN

Post #28 made 11 years ago
by rmklaw
OK guys. Wish me luck now. I just finished my first ever grain and brew in a bag. Did the Citra as per the BIABACUS in this thread. My Pre-Boil came out at 1.046. The post-boil OG came at 1.073 (much higher than planned (who is complaining). I pitched hydrated s-05 at 66 F. Will see what comes out. Thank you all for the help and valuable suggestions. Ready for another one. I am sure glad I purchased the SS Brewtech 16 Gal kettle. The piece of mind of no worries about boil-overs was worth it. Started with all quantities as per the BIABACUS and the volumes and consumption tracked right on. I think the higher OG may be due to extra orange blossom honey I added at the end. I am attaching the file with the numbers. Efficiency came very high (84.8% into fermentor)
:champ: :champ: :champ:
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Richard
Aspiring Home Brewer

Post #29 made 11 years ago
by PistolPatch
Congratulations Richard :champ: :thumbs: :salute:,

Hope you had a great day. It's always a big event doing your first all-grain I think. :peace:

Don't red too much into your numbers until you have had time to take a few measurement sets on several brews.

If you did add more than 653 grams of honey to the brew, then this certainly will have effected things. I like the way you are about 5% higher on the BIABaci's kettle efficiency prediction (as that is the way it is designed) but, because you have no KFL reading in Section L, there is no double-check on this kettle efficiency reading. Always try and measure your actual KFL (Kettle to Fermentor Loss) on a brew. Een though it is a most critical volume figure, the BIABacus is the only software that even provides a field for you to record the actual. Make sure you utilise that!

Will look forward to hearing how it tastes and congrats again :drink:,
PP
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Post #30 made 11 years ago
by rmklaw
Thanks. It was fun. Actual KFL was 0.87 gallon. I am not sure what it means in relationship to all other readings. Fermentation started within 8 hours at 68 F and got stronger the first two and half days. Still going strong, burping every second.
Richard
Aspiring Home Brewer

Post #31 made 11 years ago
by PistolPatch
What's 0.87 gal? :lol: (We used to have a neat converter thing here that would display all measurements in metric and US but the developers of it no longer maintain it. Try and post both measurements for the moment.) Okay 0.87 US gals is 3.3 L. In Section L, you have 23 Litres typed beside VIF amd KFL is blank. Did you mean to have...

VIF 23 L and KFL 3.3 L or
VIF 19.7 L and KFL 3.3L or
something else?

Plug those possibilities into Section L and see what happens in Section P.

Also, always try to do two checks on your after-boil gravity (make sure all samples are cooled). Try and do a VAW and an OG. Unless you dilute or something, they should equal each other but even if you don't dilute, sometimes you will find a discrepancy.

:peace:
PP
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Post #32 made 11 years ago
by rmklaw
Thanks. Here is the updated BIABACUS. It is VIF 23 L and KFL 3.3 L. Shows EIF 84.8%. I still don't know what all the numbers mean. The numbers in Section L actual are accurate since I kept track of the volumes every step of the process and both the kettle and the conical fermenter have markings every gallon. Thanks for all your help. Your suggestions are greatly appreciated.
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Richard
Aspiring Home Brewer

Post #33 made 11 years ago
by PistolPatch
Good stuff Richard :peace:,

First thing to be aware of and we haven't talked about this for a while on this site, is figures from a single brew can never be trusted let alone a single reading from a single brew.

This is your first brew so we can't really learn much on the figures side of things. I think your volumes look fine but I'm guessing that your Gravity of Ambient Wort reading was faulty but this is just a guess. Basically, what we are looking for in a "perfect" world of numbers, is for your actual EIB and EAW (kettle efficiencies) in Section P to match. Forget EIF - one of the posss you will find here should explain why.

I get a brew like you have recorded below probably once on every fifteen brews I do so don't be worried about it. In other words, my kettle efficiencies are 10% out of agreement or worse. Within 5% is okay/normal.

At this stage, there is nothing for you to worry about though. You just need to brew again in exactly the same way. Just make sure you try and take a VAW sample and a GAP sample (Gravity at Pitching / OG). Taking two samples gives you a double-check and often immediately resolves an anomaly.
rmklaw wrote:I still don't know what all the numbers mean.
At a very basic level, brewing is like making a cup of black, sweet tea. Instead of tea leaves and pure white sugar, the all-grain brewer uses hops and malts.

Unlike the tea brewer who adds the sugar at the end of the boil, we brewers have to add it at the beginning of a 90 minute boil and we have to use impure sugar (malts). Furthermore we don't even really know how impure our 'sugars' are! Because of this, on the sugar side of things, we work in several different ways than a tea brewer but there are also many similarities.

...

I think this tea/beer analogy might be worth writing more on but unfortunately I ran out of time to write here about two hours ago!!! :argh:
Last edited by PistolPatch on 17 Feb 2015, 18:56, edited 1 time in total.
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