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FWH in biabacus

Post #1 made 10 years ago
by Northseaguy
Hi all. After trying to input several different recipes that call for FWH I failed to get the desired IBU. What time do you or in the box? Full boil time or time it takes to reach boil plus boil time? Just a bit confused. Thanks
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Post #2 made 10 years ago
by joshua
What system do you use to measure the IBU of beer.

It would be interesting, since I do not know how to adjust the IBU equations, with out real data.

Thanks for any help you can provide.
Honest Officer, I swear to Drunk, I am Not God.
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Post #3 made 10 years ago
by Northseaguy
Tinseth formula. If I just add the prefix fw in the box and no time I get no IBU from the addition. Just want to know what time I need to enter.
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Post #4 made 10 years ago
by joshua
Ohh, the FWH time Occurs from Mash-out(when the Bag is Pulled) to the Time the Wort is below 67C/153F(the minimum temperature of Humulone/Cohumulone), or after the WhirlPool is drained.

The time depends on How fast your Kettle heats to Boil and Cools to 67F/153F

Source of Hop Data http://www.biabrewer.info/viewtopic.php ... 215#p32244

I hope this clearer than Stout.
Honest Officer, I swear to Drunk, I am Not God.
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Post #5 made 10 years ago
by mally
I normally add a time that equals how long they have been at boiling point. So mashout to boil, and flame-out to steep/whirlpool are ignored.
It is not an exact science though.

There are forum members here that use a set length of time to calculate steep/whirlpool bitterness additions.
I also think this subject has been discussed previously, but I cannot find it at the moment.
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
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Post #6 made 10 years ago
by Rick
I used to have a desire for FWH calculations to be precise, but now I do not pay it any attention. The difference (to me) is too small to spend significant thought on.

I enter full boil time.
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Post #7 made 10 years ago
by PistolPatch
In a rush and keyboard sticking but most of you will not have studied this thread.

FWH'ing has been bastardised in its definition and use. Essays can and should be written on this.

:peace:
Last edited by PistolPatch on 06 Aug 2015, 20:03, edited 1 time in total.
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