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Author Topic: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?  (Read 1344 times)

Offline fredthecat

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lol, i have never done this before i swear. but i guess i was too distracted/busy this time and forgot to clean out the mashtun after sundays brewing. its been 3 days now and it smells like doenjang/fermented bean paste.

i cleaned it out, used a little dish soap. then some near boiling water and baking soda.. the smell has dissipated.. but i am normally super clean and my mashtun had no smell before.

any thoughts on this?

im thinking of cleaning/scrubbing it a bit with softish cloth towels then maybe just throwing in some baking soda?

Offline erockrph

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #1 on: October 04, 2022, 07:37:23 pm »
Have you tried PBW or something similar? A long hot soak can definitely help.

Something else is letting it sit dry, propped open, in direct sunlight for a few days. Plastic especially seems to benefit from this.
Eric B.

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Offline dmtaylor

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #2 on: October 04, 2022, 08:02:04 pm »
I've left grain in my mash tun many times.  Am very familar with the odor, and don't even mind it anymore.  I just rinse it out and call it a day.  It's a mash tun.  Who cares what it looks or smells like.  The wort is boiled afterward anyway.  I've made sour mash beers before and even they tasted fine and NOT sour after 3 days in the mash tun.
Dave

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Offline MNWayne

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #3 on: October 05, 2022, 08:17:05 am »
Must have been a plastic mash tun.  I've done the same thing but mine is SS and smell is gone after cleaning.  Give it a good cleaning. Rinse it with bleach water and it should be fine. Smell should be gone after first use.
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Offline pete b

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #4 on: October 05, 2022, 08:26:01 am »
Once you clean it sun and air is the best.
Don't let the bastards cheer you up.

Offline denny

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #5 on: October 05, 2022, 08:34:06 am »
Baking soda is the best odor remover I've used. Fill it with hot water and a lot of baking soda.
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Offline fredthecat

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #6 on: October 05, 2022, 01:27:20 pm »
thanks guys, yeah just going to do standard practice, but i try hard to keep dishsoap away from my stuff as much as i can.

ill check the odour level now, it was left propped open and cleaned from last night.


Offline mabrungard

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #7 on: October 06, 2022, 08:21:10 am »
Bleach is a powerful disinfectant and oxidizer and a short soak in a bleach solution should destroy the odor.  Of course, you'll need to rinse and allow the tun to air out for several days.  But this approach does work.
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Offline reverseapachemaster

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #8 on: October 06, 2022, 11:11:14 am »
I've been bad about leaving the mash tun sitting for a few days before I get around to cleaning it.

I clean it out with oxyclean and hot water. Be vigilant about cleaning out everything, including valves. If it still has a smell to it I'll do an oxyclean soak. After a soak and a few days to air dry the bad smells are gone.
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Offline denny

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #9 on: October 06, 2022, 11:52:39 am »
Try the baking soda. Easy, inexpensive and effective.
Life begins at 60.....1.060, that is!

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Offline kramerog

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Re: accidentally left grain in mashtun for 3 days.. it stinks. remove smell?
« Reply #10 on: October 18, 2022, 04:27:03 pm »
As long as there aren't cracks in your tun and you don't do overnight mashes, I wouldn't be too concerned about some odor in the tun.