Corn potential conversion

Production methods from starch to sugars.

Moderator: Site Moderator

Post Reply
MaxT
Novice
Posts: 30
Joined: Tue Sep 21, 2010 11:52 pm
Location: Crikey!Land

Corn potential conversion

Post by MaxT »

I did my first AG mash on the weekend. As a long time AG beer brewer, the barley and wheat parts where fine, but I have a question about the corn.

I initially tried to use my immersion element to cook the corn, but it turned out not so good.

As I was pressed for time, I then just mashed my new feed corn (which is quite finely crushed) along with the other 11.5kg of grain for 90 mins. I imagine I did not get a lot of sugar out of the corn, but I was happy with 1.077 at 43L.. about 9%. I did add some sugar to boost it a bit.

My question is, what is the potential gravity of 1Kg of corn in 1L of water? (apologies to you imperial measurement folks).
Nightforce
Swill Maker
Posts: 251
Joined: Wed Dec 02, 2009 11:18 am

Re: Corn potential conversion

Post by Nightforce »

On the main site there is a lot of information about grains, including where someone has worked out ppg to pkgL. 2.2# of grain in 1L (.946 quart) seems way to high to me. Keeping the gain/water ratio somewhere close to the widely used max of 2#/gal, would put you in the 1kg per 4L of water range using metric units.

I'm no expert on AG washes so maybe some will post here.
Dnderhead
Angel's Share
Angel's Share
Posts: 13666
Joined: Sun Dec 23, 2007 8:07 pm
Location: up north

Re: Corn potential conversion

Post by Dnderhead »

I would thank that is impossible,the corn/maze will soak that much up.
I just use 1lb (1/2 kg) per 1 gallon (4l)= 3 abv.this comes our pretty close.
not exsact but works fingering in your head.
so 1 kg per 1 l would be 24abv of course this is impossible.
loneswinger
Swill Maker
Posts: 413
Joined: Tue Sep 14, 2010 4:25 pm

Re: Corn potential conversion

Post by loneswinger »

A decent yield would be about 230 points-kg/liter, similar to barley numbers. That is about 28 ppg.

I would have expected about 1.062 for your mash from the corn alone.

I use steam injection to bring the corn to a boil to prevent scorching.

Cheers,

-Loneswinger
It's better to learn from other people's mistakes than your own.
Dnderhead
Angel's Share
Angel's Share
Posts: 13666
Joined: Sun Dec 23, 2007 8:07 pm
Location: up north

Re: Corn potential conversion

Post by Dnderhead »

OK I ran this on a calculator.. field corn/maze
1 KG per 1 L 80% efficiency....
OG-1.225
FG-1.056
22.5% alcohol
MaxT
Novice
Posts: 30
Joined: Tue Sep 21, 2010 11:52 pm
Location: Crikey!Land

Re: Corn potential conversion

Post by MaxT »

Thanks guys.
I knew I would get bugger all from the corn as I just mashed it (not boiled it).

Good to know that properly treated, it yields about the same as barley.

Cheers.

(should have added, I only used 4kg of corn)
Post Reply