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Dunder pit experiment

If you are combining substance for the sake of looking into different properties, Tells about you approach and findings.

Re: Dunder pit experiment

Postby Zymurgy Bob » Fri Jan 16, 2015 5:45 pm

punkin wrote:
But you know my views anyway. :mg: :barf:

Yup, and I'm proud of ya, holding back that gag reflex so's you could talk with a mess of dunder-splashers. :roflmao:
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Re: Dunder pit experiment

Postby Mud » Fri Jan 16, 2015 6:53 pm

I've nothing of substance to contribute but am reading with interest. Way to go getting some sugar cane. :8)
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Re: Dunder pit experiment

Postby Harry » Fri Jan 16, 2015 6:56 pm

[quote="Zymurgy Bob"}If it's not terribly expensive, I can see a lot of rum stillers might be interested in such an assay. Like me.[/quote]


+1.
'nother thing...If you really want to improve rum products, start thinking esterification. :)
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Re: Dunder pit experiment

Postby kekedog13 » Sun Jan 18, 2015 3:39 pm

Stupid question here. A dunder pit is a container of rum backset ? And you let it set to get moldy ? And then use it in a new batch like you do with backset in a sour mash whiskey mash ? OOPS that's 3 questions.
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Re: Dunder pit experiment

Postby punkin » Sun Jan 18, 2015 5:56 pm

one answer. Yes.
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Re: Dunder pit experiment

Postby brantoken » Thu Jan 22, 2015 2:22 pm

just started fooling with rum trying to get some courage up, but guys that sounds darned scary...What is really funny is that I just got back from the Caribbean, wife wanted to do a cruise. Man that jungle in Honduras and Belize is super funky.....I cannot imagine all the biologicals skulking about. I went to Jungle training in Panama years ago and a scratch gets infected in about an hour. It defies my imagination. Ya know what that jungle is still funky and in my opinion , the Mayans built the temple pyramids to try to get some relief from damn jungle.... I would guess dunder would vary from location to location.
even so I will be working on courage to do it here in the south east. You guys are fearless... or maybe the CDC is too close to home....
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Re: Dunder pit experiment

Postby Stoney » Wed Feb 04, 2015 3:57 am

My dunder is about 4 or 5 months old, it had a 2 inch thick mould layer last time I looked about 6 weeks ago, had a peek today and the mould is entirely gone but there were hundreds of the biggest maggots I have ever seen swimming in it, on the lid and up the sides.
Gave the lid to the chooks to clean up, they loved it.
Its an a plastic 60 litre rubbish bin (new) and figured if I left the lid on then some sort of fly is going to livve its life cycle in there so ran a sieve through and pulled out 95% of them .. again, the chooks think I am a top bloke and molasses flavoured maggots are their new favourite thing.
Have I left it too long or is it just coming good ?
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Re: Dunder pit experiment

Postby RandyMarshCT » Wed Feb 04, 2015 9:28 am

I'm keen on experimentation, but the maggots would be a deal breaker for me. However, I'm pretty new to this dunder thing. I keep mine covered with coffee filters.

Punkin, what do you think? :roflmao:
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Re: Dunder pit experiment

Postby Harry » Wed Feb 04, 2015 10:52 am

Stoney wrote:My dunder is about 4 or 5 months old, it had a 2 inch thick mould layer last time I looked about 6 weeks ago, had a peek today and the mould is entirely gone but there were hundreds of the biggest maggots I have ever seen swimming in it, on the lid and up the sides.
Gave the lid to the chooks to clean up, they loved it.
Its an a plastic 60 litre rubbish bin (new) and figured if I left the lid on then some sort of fly is going to livve its life cycle in there so ran a sieve through and pulled out 95% of them .. again, the chooks think I am a top bloke and molasses flavoured maggots are their new favourite thing.
Have I left it too long or is it just coming good ?



Did the grubs look like this?.. :)

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Re: Dunder pit experiment

Postby Zymurgy Bob » Wed Feb 04, 2015 12:45 pm

Damn! I've made some bad jokes about my dunder getting up and walking away, but I always thought I was joking. :roflmao:

Seriously (if that's possible), whatever laid those eggs, should just be carrying your local microbiota, and that's what the original Caribbean dunder was all about, so I think you should be ok for rum (all boiled and vaporized, dontcha know), but if you're feeling delicate, you might stretch some screen across the top. Fabric-store tulle (pronounced "tool") is cheap and works well.

...and don't anyone ask Punkin. :!:
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Re: Dunder pit experiment

Postby brantoken » Wed Feb 04, 2015 12:51 pm

Ok ugh... how do you know when dunder has gone bad?
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Re: Dunder pit experiment

Postby dad300 » Wed Feb 04, 2015 1:07 pm

Ha...when it goes bad it's just gettin good!

I tried and the smell made me stop.

Now I take the backset from a lot of things, labeled, put it in ziplok bags and straight into the freezer. When starting a new ferment, I drop a bag or two in while cooling. Nutes, dead yeast and stuff for free...
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Re: Dunder pit experiment

Postby RandyMarshCT » Wed Feb 04, 2015 1:29 pm

Dad, that's a great idea for cooling down to ferment temps. I couldn't do it with bourbon because I need the backset to lower my ph for mashing, but it's perfect for rum.
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Re: Dunder pit experiment

Postby Smaug » Wed Feb 04, 2015 1:37 pm

IMO it should not smell bad at all.

The mold structure does not need much oxygen at all so I lock mine down to keep the flys out.
During the summer months I can grow a mold structure in about two weeks. So I aerate and lock it down tight. Within two weeks the dunder is wonderfully floral with hints of chocolate and very sparkly clean . Not at all earthy or musky.

Without locking down I always get a larva infestation and the dunder ends up smelling very foul without fail.
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Re: Dunder pit experiment

Postby RandyMarshCT » Wed Feb 04, 2015 2:11 pm

I haven't had any infestation, but it's been about 0 to 30 Degrees F outside here for the past month. Once I combine all my jars into a jerry can with more backset I will probably cover with a coffee filter for a week or 2 and then lock it down. It smells very fresh and minty. If it wasn't for the layer of mold on top I'd be tempted to taste it.

Question: When I transfer to a 5 gallon container, should I add any sugar at all? I have a few pounds of raw cane sugar left from my trip to the islands. I added a small pinch to each of the jars, but not even enough to change the Sg reading.
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