Corn Sugar (Dextrose)

Corn Sugar (Dextrose)

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Corn Sugar, or dextrose, is used to "prime" your beer to produce natural carbonation in the bottle. "Priming" is the act of adding a small amount of fresh fermentable sugar to the beer just before bottling so that the residual yeast will consume it and produce carbonation in the sealed bottle. We recommend corn sugar for this purpose because it is easy for the yeast to consume and has a neutral flavor profile, meaning it will leave your beer tasting the way you designed it!
Use 4 or 5 oz of corn sugar to prime 5 gallons prior to bottling. Dissolve in 1-1.5 pints of water and boil for 5 minutes to sanitize prior to mixing with your beer.
If your fermentation ended at 68F it will retain about 1 volume of CO2. If it ended at 50F it will retain about 1.2 volumes of CO2. 4 oz in 5 gallons adds 1.48 Volumes of CO2. 5 oz adds 1.84 volumes of CO2 to 5 Gallons.
Suggested CO2 Levels:
  • Cask Ales 1.5 to 2.0
  • Ales 2.3 to 2.6
  • Lagers 2.4 to 2.6
  • Highly Carbonated Beers 3.0+
    • Champagne is 6.3 and requires a special bottle.
To convert from volumes to g/L:
  • multiply volumes x 1.96.
Can also be used to boost your Original Gravity without impacting the beer's flavor profile. Adds 1.042 points per pound per gallon (PPG) to your specific gravity.
  • Dextros Needed (lbs.) = (Actual Volume * (Target Gravity – Actual Gravity)) / 0.042
Community Q&A

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Why did you choose this?
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Because the yeast asked me to...I obey my yeast.
Chris M on Oct 20, 2020
Plop, plop, fizz, fizz
Jeffrey E on Oct 20, 2020
Because the yeast asked me to...I obey my yeast.
Chris M on Oct 20, 2020
I want bubble beer.
Kevin D on Oct 20, 2020
Plop, plop, fizz, fizz
Jeffrey E on Oct 20, 2020
celine d on Oct 20, 2020
I've had great experiences with this product
Creighton H on Oct 15, 2020
its universal
Jared D on Oct 14, 2020
kyle s on Oct 13, 2020
Need it
Mark S on Oct 13, 2020
None on hand
Eric K on Oct 12, 2020
Not on hand
Eric K on Oct 12, 2020
need it got to have it
SUSAN L. on Oct 10, 2020
Works great
Damon S on Oct 9, 2020
sweeten me up
Deland H on Oct 7, 2020
get that carbonation
David J on Oct 7, 2020
Wayne N on Oct 5, 2020
Andrew S on Oct 2, 2020
I prime with dme now, but you never know when you might need a little sugar.
John M on Oct 2, 2020
Carbonation caps result in over carbonated beer for me
Wesley A D on Oct 1, 2020
To make seltzer
Jeff H on Sep 30, 2020
going to use in a IPA
Josh J on Sep 29, 2020
to get bubbles
Bill M on Sep 29, 2020
To get bubbles
Bill M on Sep 29, 2020
Clean and accurate carbonation of beer in bottles
Brian V on Sep 26, 2020
Priming beer.
john e on Sep 25, 2020
I am out
Vaughn G on Sep 24, 2020
So my beer has bubbles..
George B on Sep 24, 2020
I use it for priming and adding ABV
Thomas Gariety on Sep 23, 2020
need it for bottling
Scott H on Sep 23, 2020
It's priming sugar. Why else?
Victor B on Sep 23, 2020
I am bottling conditioning the beer.
David A on Sep 22, 2020
It works
Noel C on Sep 22, 2020
No special purpose
Richard D on Sep 22, 2020
I wanted the beer to carbonate
Ron A on Sep 19, 2020
Good stuff
troy s on Sep 15, 2020
We all need alittle abv boost
Jonathan Weber on Sep 14, 2020
To raise sugar content for yeast
scott on Sep 10, 2020
Need to carbonate bottles
Bret S on Sep 10, 2020
What choice do I have
Andrew S on Sep 8, 2020
higher alc content
Valued C on Sep 4, 2020
carbonation caps over carbonate my beers
Wesley A D on Sep 4, 2020
Used Before
John B on Sep 4, 2020
I brew
Steve B on Sep 3, 2020
no comment
Paul J on Sep 3, 2020
Need it
Joseph D on Sep 2, 2020
I'm using my own hops--a lot of them--and I need something besides malt to carry them.
Merrill W on Sep 2, 2020
Bottle Priming
John D F on Sep 1, 2020
sugar prime starter for yeast and carbonation
Matthew G on Aug 29, 2020
want carbonated beer
Josh B on Aug 29, 2020
Need this for bottling
SHAILESH G on Aug 27, 2020
White IPA recipe
Adam S on Aug 26, 2020
I want bubble beer.
Kevin D on Oct 20, 2020
celine d on Oct 20, 2020

4.9 / 5.0
33 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
It's sugar, let's not get excited
Hooray for adjuncts.
October 2, 2020
1 month ago
It was corn sugar
The bag intact and it arrived as scheduled.
September 16, 2020
1 month ago
needed item
I need this for bottling, but decided to keg
September 2, 2020
2 months ago
Have been getting consistent carbonated results
August 25, 2020
2 months ago
Prime sugar!
???? perfect for bottle conditioning
August 20, 2020
2 months ago
Excelente producto muy buena calidad
August 9, 2020
3 months ago
it's corn sugar. Whats to review?
It's corn sugar. What more can I say. I haven't even reached the lagering stage yet, let alone bottling.
July 24, 2020
3 months ago
Corn Sugar
It was indeed corn sugar
July 7, 2020
5 months ago
This Corn Sugar was Sweeeeeet
This corn sugar worked exactly as expected. Perfect in my Cali IPA
June 12, 2020
5 months ago
corn sugar
worked as advertised
May 27, 2020
6 months ago