Inverted Sugar Aeration

Sugar, and all about sugar washes. Where the primary ingredient is sugar, and other things are just used as nutrients.

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C2H5O5
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Inverted Sugar Aeration

Post by C2H5O5 »

I have been researching whether or not I should invert my sugar on a Birdwatchers Run, After a bit of homework I see that there is a difference of opinion on this, however I won't open that can of worms but do need some advice.
I will be inverting my sugar but was wondering if its best to Aerate (not areate, :D ) the wash before adding the tomato paste and pitching the yeast? I have some big stones :shock: that will bubble the fermentation vessel pretty wildly.
Also, would 10 or 15 minute be enough?

I will be using two 20 gallon ferment containers



Resources.

Re: Dissolving sugar vs. Dumping into fermenter
by DAD300 » Mon Oct 05, 2015 12:58 pm
I Dissolve in 150F water until it turns golden color...this does several things. 
1. Removes all or most of the clorine from the water
2. Kills the yeast I add as starter food
3. Kills anything That may have been in the water if I used pond water
4. Disperses the other nutrients I may add,
5. It removes O2 and we should aerate to replace the O2

I also believe-
1. Ferments are quicker when sugar is inverted
2. There is a taste dif in the final product when inverted.

Re: shelf life of inverted sugar
by S-Cackalacky » Sun Aug 23, 2015 6:02 am
Just repeating what I've read - so, don't take this at face value. There have been some recent posts (threads) about how sugar (sucrose) inversion may help to eliminate some of the sugar burn inherent with sugarhead ferments. When you report back on your results, let us know if you have a smoother finish.


To invert (sugar) or not to invert? That is the question.
by T-Pee » Sat Aug 09, 2014 8:02 am
And for me I believe I've stumbled across the answer.

When I first got going in this hobby I was simply dissolving sugar into a wash without boiling and suffered through a number of excruciatingly slow ferments to the point that I thought I was stalling them. Then I started using hot backset, heating it up further while adding and dissolving the sugar. Lo and behold, my ferments were ripping along like everyone else's and ready to run in less than two weeks including clearing and I was a happy boy...until the latest ferment of sweet feed.

It was a bit late when I started on it but I wanted to get the ferment going so I dissolved the sugar into the cold backset and dumped it into the fermenter. Over two days later and it hadn't hardly gotten started. WTH? What did I do differently? Oh yeah. The only difference was not boiling or at least sufficiently heating the mixture to invert the sugar. On the UJ ferment I did just after the sweet feed I had time so I boiled the mixture as I had before and it's been done for days, cleared and ready for stillin'. The sweet feed? Still slowly plugging away at 1.030 after a good two weeks.  

Moral: If you have the time to build a fresh ferment, you have the time to do the sugar inversion. Otherwise, you'll be spending time waiting for a single ferment to finish in the time you could have done three full cycles. Your choice. 

tp



Re: Not inverting sucrose
by Prairiepiss » Tue Oct 09, 2012 12:17 am
You probably wouldn't notice a difference with turbo junk. 

Inverting it just makes it easier for the yeasties to eat. When you make a wash with normal yeast without all that other crap added. It helps them along better. In a wash where you try to give the yeast just enough nutrients to do their jobs well. And not overdose them. Helping them by making the sugar more edible helps.

On a tubo where 80% of the package is nutrients. To push the yeast harder and faster. They just do it. Kinda like a methhead. They just keep going and going and going. At 100mph the whole time. Till the crash or die.

Not inverting isn't gona do much even with a normal yeast. It mite be just a hair slower. Or it mite not finish out below 1.000 SG. If you let it go long enough. They would eventualy eat the rest of it. Maybe. It would just be slow.

Re: Not inverting sucrose
by rubber duck » Tue Oct 09, 2012 3:35 am
The reason to invert sugar is that sucrose is fructose and glucose bonded together. Yeast can not metabolize sucrose until the bond is broken, yeast will create an enzyme to break this bond but in the process it can create an off taste. By breaking the bond your doing the work so the yeast doesn't have to and you get a better product.

The down side is that invert sugar is less fermentable. I get 5-10% less abv.
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der wo
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Re: Inverted Sugar Aeration

Post by der wo »

Aeration is good always at the beginning. But if you cooked the wash, aeration is more important, because you have boiled out any O², what the yeast needs for multiplying.
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Re: Inverted Sugar Aeration

Post by rgreen2002 »

+1 der wo.

I really like birdwatchers.... I know...... but aged for a few months on oak its like a mature rum to me....

Anyway.... Aeration before pitching your final yeast... the tomato paste needs to go in but does not factor into your question. By final yeast I mean the yeast you want to do the fermenting not the yeast DAD300 recommended as starter yeast.

I use a paint mixer on my drill for a few minutes which is probably overkill and I've always inverted and aerated so I cannot attest to taste differences .
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Re: Inverted Sugar Aeration

Post by C2H5O5 »

Thanks guys, after reading your posts, I noticed RGreens links and searched as he suggests.
Wow, so much easier. Found this old thread http://ww.homedistiller.org/forum/viewt ... ?f=3&t=776 and saw a suggestion for aeration using a Kitchen Stick Blender, cool I just purchased one a few weeks ago.
Invert, add nutrients, use stick blender, pitch yeast.
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Re: Inverted Sugar Aeration

Post by still_stirrin »

Many ways to skin that rabbit.

But the thing to remember is "aeration is good for yeast aerobic reproduction". It gives you a population of healthy yeast cells which will transition into the anaerobic phase (fermentation).
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Re: Inverted Sugar Aeration

Post by C2H5O5 »

still_stirrin wrote:Many ways to skin that rabbit.

But the thing to remember is "aeration is good for yeast aerobic reproduction". It gives you a population of healthy yeast cells which will transition into the anaerobic phase (fermentation).
ss
True, very true. One member mentioned just pouring the wash back and forth a few times, is all that is needed.
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Re: Inverted Sugar Aeration

Post by Kegg_jam »

C2H5O5 wrote:
....One member mentioned just pouring the wash back and forth a few times, is all that is needed.
Pretty much that's it. Pour from a nice height so it sloshes around as much as possible.
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Re: Inverted Sugar Aeration

Post by greggn »

> One member mentioned just pouring the wash back and forth a few times, is all that is needed.

Depending on the volume of your wash you may also need a chiropractor.

I prefer to aerate with O2 ... just a minute of pure oxygen bubbled through a 0.5 micron stone gets it done quickly.
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Re: Inverted Sugar Aeration

Post by Maritimer »

I use boiling water to dissolve the sugar, then use a jet nozzle on a hose to fill up the fermenter. The jet produces lots of foam and bubbles.
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