First extract batch - lid on pot when steeping grains?

GOOCHY · Nov 28, 2009

Hey guys I think I have everything ready to go but just had one last question. Do you usually keep the lid on the pot when you're steeping your grains? I know not to put the lid on when boiling the wort, but wasn't sure about this part.

fartingdog · Nov 28, 2009

Sure can. Just keep an eye on your temp so it doesn't get over 165º.

GOOCHY · Nov 28, 2009

Sounds good, thanks fartingdog - much appreciated.

GOOCHY · Nov 28, 2009

Worked just fine - just did the hop addition and we're on our way to a 60 min boil!

twocylndr · Nov 29, 2009

Ohhh, nooo. You shouldn't put a lid on it...I can't recall what you are supposed to let escape. By covering your brew pot you are trapping the stuff that is supposed to escape...

BarleyWater · Nov 29, 2009

twocylndr said:
Ohhh, nooo. You shouldn't put a lid on it...I can't recall what you are supposed to let escape. By covering your brew pot you are trapping the stuff that is supposed to escape...

While boiling the wort you need to leave it uncovered to allow DMS (di-methyl sulfide) to escape, because it will lend a cooked corn/cabbage flavor and aroma to the beer that is undesirable. While mashing (or steeping) however, almost every vessel you see will be covered to keep the heat in, and there is no benefit to keeping it open at this point.

GOOCHY · Nov 30, 2009

Thanks BarleyWater, that's what I had read about DMS. As a side note, everything is in the fermentor and things are moving along nicely. It's bubbling away and has a nice layer of krausen.

First extract batch - lid on pot when steeping grains?

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