60 or 90

[PD]

boil minutes that is.
Lots of recipes say 90 mins and some say 60 mins. I can't see any difference in the figures in my brew software when I change between the two.
I take it for granted 90 mins would be the best to use, but if I do a 60 min boil do I have to compensate any where else ?
My boiler does not seem to be the most sturdy and it would be easier with 60 min boil.

 

[jonnymorris]

There was a thread on here recently about the merits of a 90min boil. In essence, you've a better chance if achieving the hot break and more time to boil off unwanted proteins etc. I'll post a link if I can find it.

Just found it on 9-Sept... it was your post!

 

[PD]

yes I know thanks Received the info re benefits of 90 min boil from everyone, but I still can't figure out if I do 60min boil if I have to compensate any where else, do something else. As far as I can tell the answer is No Only time I've done a AG brew I did 60 min boil and achieved hot break with all the little protein floaty bits. I'm thinking of staying with the 60 unless anyone can say no its got to be 90.

 

[jonnymorris]

I can't imagine what you might change for a shorter boil and wonder if there's any great perceivable difference anyway for the average home brewer.

 

[PD]

that's what I'm thinking and a 60 min is better for me

 

[daveozzz]

From what I understand (and that's not a lot), there's certain types of malt that are more prone to off flavours from DMS (cooked corn flavour?) - pilsner malt being one of them. So those malts are supposed to be boiled for 90 mins to be sure to make sure it doesn't happen. That may be why some recipes are saying 90 mins. But from reading forums loads of people just do 60 mins and never notice any problems.

So I reckon I'm sticking with 60 unless my beers start tasting of corn on the cob.

 

[dennisdk2000]

All my recipes so far have said 60min; the brew I'm doing on Thursday says 75min... I just do as it says, but I'm guessing it doesn't make much difference.

Dennis

 

[kev]

You'd need to adjust your boil-off volume.

K

 

[dennisdk2000]

Would it not be simpler to simply top up with sterile water once in the FV? The recipe says to do so if necessary anyway...

Dennis

 

[kev]

If you reduce boil time then your final volume will be larger assuming everything else is constant.

For example, I need 30l to end up with 20l after a 90 mon boil. If it was a 60 min boil I'd only need 26 or whatever.

Beersmith works that stuff out for me.

 

[PD]

cheers Kev that's an important point to remember.
So what I can see is that there is nothing seriously detrimental in going for 60 mins and in fact it will have some benefits in my particular case with a weak cheap boiler. I understand I have to watch out and ensure the hot break is passed but that was easily done on my first AG brew...
Thanks all, I guess I just wanted someone to talk me into it .