(DONE) support negative FG values

[Kaiser]

I just measured the fast ferment test for my double IPA that has enzyme extract in the fermenter and it stopped at -0.2 Plato. This is 100+% apparent attenuation and BF doesn't support that.

I think that should be as simple as relaxing the input value checking.

Entering 101% custom attenuation in the recipe works, though.

Kai

 

[LarryBrewer]

Re: support negative FG values

That can be done.

How is it possible though? Was the initial reading off?

 

[Kaiser]

Re: support negative FG values

I pulled wort from the 60 C mash and set it aside to add it to the fermenter. This wort had active b-amylase that kept working and made a super fermentable wort.

I experimented with this on a smaller scale a while back: http://braukaiser.com/blog/blog/2012/09 ... fermenter/

Kai

 

[LarryBrewer]

Re: support negative FG values

Yep this was a fairly simple change.

An FG of -10 degrees Plato, with an attenuation of up to 150% will be supported in the next release!

 

[Kaiser]

Re: support negative FG values

technically you only have to support up to 122 % ADF (apparent degree of fermentation) since this matches 100% RDF (real degree of fermentation).

Kai

 

[LarryBrewer]

The 2013 January release is live, and this feature is complete.

Details on this release here:
http://www.brewersfriend.com/2013/01/15 ... t-updates/