Can Someone Tell Me What A Diacetyl Rest Is For?

[Simon W]

Hi Joe! Welcome to the Forum

Re: Diacetyl(just to keep on-topic)
Can't say I've ever pick it out. I would need to be handed a beer with noticable diacetyl by someone knowledgable that says, "taste that? thats diacetyl"
I'd need that with everything actually, I'm absolute crap at giving names to aroma's and flavours.
Doesn't mean I can't tell a good brew from bad tho!

 

[tangent]

Hi Grinder,
Google is your friend.

http://beerme.com/diacetyl.shtml

Plenty of info out there if you do a search.

cheers
johnno

AHB was designed for the specific purpose of brewers asking questions of other brewers and getting oppinions from other brewers.

I think you'd be better off listening to a Moderator when they say that a Search before a Question is always the right way to go and appreciated by all. If that doesn't work, ask away.

 

[reveler]

do you do the diacetyl rest in the primary fermenter? or do you rack it to the secondary then do it?

 

[Adamt]

It is usually done near the end of the primary (80% towards estimated FG), the risen temperature encourages diacetyl to escape as well as finishing fermentation.

 

[reveler]

It is usually done near the end of the primary (80% towards estimated FG), the risen temperature encourages diacetyl to escape as well as finishing fermentation.

ok, so I don't move the beer untill after the diacetyl rest?

 

[domonsura]

Hi Grinder,
Google is your friend.

http://beerme.com/diacetyl.shtml

Plenty of info out there if you do a search.

cheers
johnno
I think you'd be better off listening to a Moderator when they say that a Search before a Question is always the right way to go and appreciated by all. If that doesn't work, ask away.

Re: diacetyl, I've only had one beer where I could identify diacetyl, but wow, was it there or what. Definite butterscotch, and unbearable. I ended up pouring 40 litres of it down the drain because the level of it was disgusting. But I'm not sure I'd have such success detecting it in smaller levels?

RE: search - Well said Tangent - I've just been through a similar thing on another forum and been abused for having the nerve to suggest such a thing, but I agree with you whole heartedly. Search, then ask. You learn heaps of associated information as well. I search all the time and find that I learn lots of stuff that is just as relevant to my question but might not have picked up on otherwise. Give a man a fish and all that stuff....but anyway.....

 

[Adamt]

I guess it wouldn't really matter, as long as you raise it to 18-20 for a couple of days before it gets sealed in bottles/kegs so it can escape.