Corn Sugar vs. Powdered Sugar?

[MootsLnbKing]

It being the holidays and all I need to bottle a Wee heavy I brewed a little while ago, and i don't think i have enough corn sugar but have plenty of powdered sugar due to my wife's cookies and cakes that she bakes.:) So how much powdered sugar,is it the same stuff:o

[corkybstewart]

Powdered sugar's got some additives you don't want in beer. Just use table sugar, use it just like corn sugar, by weight, not volume.

[MootsLnbKing]

Like say 3/4 of a cup per 5 gallons?

[corkybstewart]

I don't bottle so I'm not 100% sure but I think you want to weigh out 5 ounces of sugar. Volume is unreliable. The bigger grains of table sugar fill a bigger volume than the same weight of finer corn sugar.

[EThome]

I have had very good success with about 4.0 ounces of ordinary table (cane) sugar (about 2/3 of a cup) in 2 cups of water - boiled for at least 5 minutes. Carbonation has been good and consistent.

In How to Brew, John Palmer provides a nomograph if you want to get more precise with the volume of carbonation based on beer style.

[vance71975]

It being the holidays and all I need to bottle a Wee heavy I brewed a little while ago, and i don't think i have enough corn sugar but have plenty of powdered sugar due to my wife's cookies and cakes that she bakes.:) So how much powdered sugar,is it the same stuff:o

Powdered sugar would cause problems especially if you have enzymes in your beer, Powdered sugar has Corn Starch in it, which if converted to sugars can cause bottle bombs.

[BrewDog]

Unless you add amylase enzyme into primary (a bad idea -- it will thin your beer out leaving almost no body) all the enzymes will be denatured in the boil. The worst you'll get is a starch haze (if there is corn starch in the powdered sugar), and a beer that won't cellar very well.