30 minute boil vs 60 minute boil

[seabeemech1970]

Ok a buddy and I are discussing if doing a 30 min boil would be alright. Is it neccessary to do a 60 min boil. I know in some cases you increase the time. Why is 60 minutes a standard boil time? Would 30 mins be alright?

 

[badbrew]

If it is all extract, then it should be o.k. I believe the 60 minutes will rid toxins from the grains. Also it can affect hopping some as well.

 

[Gunrunner]

I would do a search. There are a few threads on this. Lots of good info out there.

 

[weirdboy]

60 minutes is preferred because you isomerize more alpha acids from the hops, which means you use less hops to bitter your beer.

Moreso for all-grain and partial mash brewers, a longer boil also helps get rid of the DMS that forms. In fact for pilsner malt-based beers, it is recommended to boil at least 90 minutes due to the increased levels of SMM (DMS precursor) found in pilsner malt.

 

[NordeastBrewer77]

60 minutes is preferred because you isomerize more alpha acids from the hops, which means you use less hops to bitter your beer.

Moreso for all-grain and partial mash brewers, a longer boil also helps get rid of the DMS that forms. In fact for pilsner malt-based beers, it is recommended to boil at least 90 minutes due to the increased levels of SMM (DMS precursor) found in pilsner malt.

^this^. longer boils are to get things like DMS out of the wort and to maximize the isomerization of the bittering hops.