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Author Topic: IMF "International Maltiness Factor"  (Read 4115 times)

Offline Robert

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Re: IMF "International Maltiness Factor"
« Reply #30 on: March 05, 2018, 03:34:29 pm »
Been working on this for quite some time now.  Actually have a formula:



Surprisingly the answer is 42.

As an aside, how many actually brew, drink (and enjoy!) very malt beers like eisbock?

I have a Heller Bock and a Doppelbock lagering. No eisbock.

Drink, like? Yep.  Brew?  I think Eisbock would be illegal to homebrew, because the freezing counts as distillation.
« Last Edit: March 05, 2018, 03:36:06 pm by Robert »
Rob Stein
Akron, Ohio

I'd rather have questions I can't answer than answers I can't question.

Offline tommymorris

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Re: IMF "International Maltiness Factor"
« Reply #31 on: March 05, 2018, 04:56:36 pm »
Been working on this for quite some time now.  Actually have a formula:



Surprisingly the answer is 42.

As an aside, how many actually brew, drink (and enjoy!) very malt beers like eisbock?

I have a Heller Bock and a Doppelbock lagering. No eisbock.

Drink, like? Yep.  Brew?  I think Eisbock would be illegal to homebrew, because the freezing counts as distillation.
OMG.  In my state, owning equipment which can be used to destill alcohol is illegal. I guess I need to throw away my freezer.

Offline Robert

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Re: IMF "International Maltiness Factor"
« Reply #32 on: March 05, 2018, 05:26:46 pm »
OMG.  In my state, owning equipment which can be used to destill alcohol is illegal. I guess I need to throw away my freezer.
Just say it's for making racing fuel.  While keeping beverages cold. It all makes sense. 8)
Rob Stein
Akron, Ohio

I'd rather have questions I can't answer than answers I can't question.

Offline Philbrew

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Re: IMF "International Maltiness Factor"
« Reply #33 on: March 05, 2018, 09:25:06 pm »
Yep, that thread was worth reading all the way through.

You guys are nuts... luv ya!
Many of us would be on a strict liquid diet if it weren't for pretzels.

Offline homoeccentricus

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Re: IMF "International Maltiness Factor"
« Reply #34 on: March 06, 2018, 05:28:05 am »
TPL (total potential maltiness) = grams of malt per liter finished beer

IBU (which ever metric you prefer) because hopping reduces perceived maltiness

SRM÷2  because color increases perception of maltiness, but it's not linear

TPL ÷ IBU × SRM/2 = RMF (Raw Maltiness Factor)

If RMF is greater than 100:
RMF - Max IMF (100) equals CF (Correction Factor)
RMF - CF = IMF

If RMF is less than 13, just use IMF 13. The IMF is not mean spirited.

FAQs:

Q: Why no calculation concerning Yeast/Fermentation effects?

A: Because without any Malt the yeast would just lay there asking stupid questions. So, any flavors that might be thought to originate with yeast are actually from malt.

Q: Why no calculation concerning unmalted grains, or adjuncts?

A: Some things require a higher level of understanding, and you're just not there yet. Roll with it, and one day it will come to you.

Q: Why not just describe the maltiness of beer using words?

A: Who let this moron in here? No further questions!

So make two beers, exactly the same in every way except one is made with 100% pils mout, and the other with 100% maris otter. They will both have the same IMF. I assume that's a feature of your algorithm, not a bug.
Frank P.

Staggering on the shoulders of giant dwarfs.

Offline rob_f

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Re: IMF "International Maltiness Factor"
« Reply #35 on: March 10, 2018, 05:13:23 pm »
Drinking a fine Wee Heavy as I write this, and I have to say its IMF is off the charts.
Rob Farrell
AHA
CRABS

Offline klickitat jim

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Re: IMF "International Maltiness Factor"
« Reply #36 on: March 10, 2018, 05:43:28 pm »
Drinking a fine Wee Heavy as I write this, and I have to say its IMF is off the charts.
The IMF really improves any beer!

Offline Robert

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Re: IMF "International Maltiness Factor"
« Reply #37 on: March 10, 2018, 06:18:49 pm »

Q: Why not just describe the maltiness of beer using words?


Indeed.  I brewed today with a different malt of the same color, and I can tell you it's a horse of a different color! 
Rob Stein
Akron, Ohio

I'd rather have questions I can't answer than answers I can't question.