Beer Priming Calculator
Calculates how much priming sugar to add at bottling time for home brewed beer. Includes the residual amount of CO2 present in the beer due to fermentation. Works for Corn Sugar (Dextrose), Table Sugar (Sucrose), and Dry Malt Extract (DME). Also known as bottle priming. Sugar is added at bottling time. The remaining yeast ferment the sugar and this produces CO2.

Priming Calculator:
Units:
Amount Being Packaged: (Gallons)
Volumes of CO2: (see table below)
Temperature at Bottling: (F)
 

Priming Sugar Options:
-
(Use one of the above options)
Carbonation Guidelines by Style
British Style Ales 1.5 - 2.0 volumes
Belgian Ales 1.9 - 2.4 volumes
American Ales and Lager 2.2 - 2.7 volumes
Fruit Lambic 3.0 - 4.5 volumes
Porter, Stout 1.7 - 2.3 volumes
European Lagers 2.2 - 2.7 volumes
Lambic 2.4 - 2.8 volumes
German Wheat Beer 3.3 - 4.5 volumes


Don't Over Prime! When bottling I typically do 3.5 ounces of corn sugar (dextrose) by weight for 5 gallons. This yields about 2.2 volumes of carbonation, which is plenty. Over carbonation leads to a lot of problems, like swollen caps, exploding bottles, and a really annoying time trying to pour foamy beer. See our article on home brew bottle bombs.

Notes on Sugars: Corn sugar and dextrose are the same thing. Dextrose is the most popular priming sugar. Table sugar can also be used. Dry Malt Extract (DME) is another option. This calculator uses a 75% attenuation value for the DME.

Measuring Priming Sugar: We recommend measuring priming sugar by weight. The values this calculator reports are by weight, not by volume. Weight is the most reliable method. Use the same scale you use for hop additions.

Other sources will say add X cups of sugar. The problem we have with this is, there could be air pockets inside the scoop, making it hard to tell just how much is in there. Yeah it will get you close most of the time, but it is not reliable or repeatable in comparison with measuring by weight. An under primed batch of beer is a real bummer, don't let a measuring cup be the cause.

Thanks for using our calculator. You might be interested in the Complete Recipe Builder. It is a big time saver, easy to use, and you can try it anonymously. OG/FG/IBU/SRM/ABV are automatically calculated. Recipes can be saved, printed, shared, and brewed for complete record keeping.

Click Here To Try The Complete Recipe Calculator


Legal Disclaimer: The Brewer's Priming Calculator is for entertainment purposes and should not be used for professional brewing. No warranty or guarantee of accuracy is provided on the information provided by this calculator.


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