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?
MoreFlavor Store
David M on May 11, 2021
For carbonation.
Ken Van B on May 10, 2021
David M on May 11, 2021
Used before. Like it
Jeffrey F on May 11, 2021
For carbonation.
Ken Van B on May 10, 2021
Making Seltzer
Chris Dornbach on May 6, 2021
Andrew Gregorovius on May 5, 2021
to use as additive for beer, reducing the body and making it feel lighter
kevin p on May 4, 2021
Ive used this with bottling and it worked great
Jeff on May 4, 2021
Making seltzer
Adam P. S on May 1, 2021
works well
Damon S on May 1, 2021
Bottling day
Jeffrey Brock on Apr 28, 2021
need it
ORVILLE C on Apr 23, 2021
Works perfectly
troy s on Apr 23, 2021
Additive to wort.
charles leroy guest on Apr 20, 2021
comfortable with this
Jeffrey F on Apr 17, 2021
troy g on Apr 16, 2021
William T on Apr 16, 2021
better price than NB
Jim E on Apr 16, 2021
bubbly bottles. For more detail check Green oxygen absorbing bottle cap answer.
Douglas K on Apr 16, 2021
Priming sugar for IPA
Charles G on Apr 15, 2021
need extra
Doug Haviland on Apr 10, 2021
I still bottle and need this for priming.
S L on Apr 9, 2021
For Bottling
Gary St A on Apr 9, 2021
Priming sugar
Christian F on Apr 8, 2021
I want to use dextrose instead of table sugar
Ron Rios J on Apr 7, 2021
Works well for bottling
Vernon B on Apr 5, 2021
Suggested in a video I watched on brewing 1 gallon of beer.
Michael C on Apr 3, 2021
Brewing a Pliny the Elder Clone.
Joad B on Apr 1, 2021
had great luck
JAMES K on Mar 31, 2021
David B on Mar 25, 2021
To ferment!
Benjamin F on Mar 24, 2021
For bottling
Paul M on Mar 23, 2021
Need for bottling.
Robert M on Mar 18, 2021
Zero clue
Andrew M on Mar 18, 2021
To make seltzer water
John P on Mar 16, 2021
bottle conditioning
Antonio Martinez on Mar 16, 2021
need it for bottling .
James Duclos on Mar 16, 2021
I need this amount and i just know this brand
Dorian C on Mar 12, 2021
For bottle conditioning
John J W on Mar 11, 2021
Experimentation with fermentation
Russell B on Mar 10, 2021
need for bottling
Greg Lutowsky on Mar 9, 2021
for bottle conditioning
John H on Mar 4, 2021
grow mushrooms at home
john l g on Mar 4, 2021
I use it for priming. Is sometimes hard to find. I ordered extra so I won't have to buy any for a while.. also a great price..
Mark B on Mar 3, 2021
Great price
Robert G on Mar 3, 2021
To carbonate cornet keg in place or to use little c02
Tom N on Mar 1, 2021
Alejandro B on Mar 1, 2021
gotta have it.
Mr John D Williams S on Feb 26, 2021
i need it
Paulino T on Feb 24, 2021
John K. on Feb 24, 2021
I need this
Jeff L on Feb 23, 2021
Used before. Like it
Jeffrey F on May 11, 2021
Making Seltzer
Chris Dornbach on May 6, 2021

4.9 / 5.0
41 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Great sugar for seltzer’s
Used recently to brew a hard seltzer. This stuff dissolves fast and 8 pounds was enough to get 11 gallons up to 1035-1037
April 15, 2021
1 month ago
Rated 5 out of 5
Excellent quality and reasonably priced.
April 8, 2021
2 months ago
Rated 5 out of 5
Corn sugar
Reliable, my go-to carbonation sugar.
March 4, 2021
11 months ago
Rated 5 out of 5
Use sometimes for bumping ABV, but mostly for bottle conditioning.
February 15, 2021
3 months ago
Rated 5 out of 5
Corn Sugar
Big waste of my time for asking for 20 letters. I will not do future ratings due to this!
February 2, 2021
4 months ago
Rated 5 out of 5
Good choice
I chose this based on website options available. Worked well and easy to dissolve.
January 24, 2021
4 months ago
Rated 5 out of 5
Great product at a very affordable price!
December 21, 2020
5 months ago
Rated 5 out of 5
corn sugar
the corn sugar is very easy to use. It dissolves fast and completely.
October 27, 2020
7 months ago
Rated 5 out of 5
It's sugar, let's not get excited
Hooray for adjuncts.
October 2, 2020
8 months ago
Rated 4 out of 5
It was corn sugar
The bag intact and it arrived as scheduled.
September 16, 2020
8 months ago