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-   -   Will DMS age out or Do I dump my beer? (http://www.homebrewtalk.com/f36/will-dms-age-out-do-i-dump-my-beer-184165/)

MrLucky13 06-27-2010 03:55 PM

Will DMS age out or Do I dump my beer?
I have been brewing a parshal mash cream ale recipe and the first batch was awesome great for you BMC drinkers. I made it again, and again. I have 5 gal in bottles and 5 gals in secondary right know. I have noticed that it smells like corn (DMS). I only did a 60 min boil on both beers. Should I dump the beer and start over? These were my first parshal mash beers now I'm a little taken back I was going to start all grain in the next batch. What can I do?

Thanks for the help in advance.


BargainFittings 06-27-2010 04:04 PM

Some corn aroma is not a fault. If it is unpleasant then just let the bottles sit and try one every week to see if it subsides. The secondary batch I would bring the temp up around 68-70 and let it mature some for a week or so to see if the DMS subsides.

What was your recipe? What yeast strain?

MrLucky13 06-27-2010 04:28 PM

Recipe that I used all three times.
4 lbs. American 2-row Pale
0.25 lbs. American Caramel 10L
3 lbs. Dry Extra Light Extract
0.50 lbs. Flaked Corn
0.5 oz. Cluster Pellets boiled 60 min.
0.5 oz. Cascade Pellets boiled 15 min.
1 pack Safale US-05 yeast.

Mashed @ 160 for 75 min. in a cooler. Batched sparged.

They all fermented at 68 deg F.

The last to I reused yeast from the previous batch. I brewed back to back to back. So I thought I would reuse the yeast because the first one was so good.

homebrewer_99 06-27-2010 04:44 PM

http://www.howtobrew.com/section4/chapter21-2.html :mug:

Saccharomyces 06-28-2010 06:30 PM

I have heard that it is possible to remove DMS through CO2 evolution, but that is only applicable for beer in the keg. If you bottle it is obviously not practical to let the beer offgas and re-carbonate it. :)

chrispykid 06-28-2010 08:22 PM

First off, I'd package the beer and taste it before deciding that it's undrinkable.

For future batches a 90 minute boil helps reduce DMS as does rapid chilling at the end of the boil. Don't get discouraged about stepping up to all-grain, this is a correctable problem.

Chuck_Swillery 06-28-2010 08:42 PM

Do not dump it out! Let it age. It'll mellow out but it may take time...

Mateo 06-28-2010 09:08 PM

One option is you can create a starter and dump it into the secondary. The yeast will be very active and have little or nothing to metabolize. Thus, in theory they will metabolize anything that they can. DMS is cleaned up in lagering beer because the yeast metabolize it. The starter just does it in hours instead of days.

MrLucky13 06-30-2010 12:14 PM

Thanks for all the advise. I will give it a taste to night and then I will post my thoughts.

BeerWars 06-30-2010 03:48 PM

Of course it smells like corn. You have .5 a pound of it in your brew.

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