1 Gallon Batch Priming Sugar Question

It depends on the type of beer. You can use this calculator:

http://www.brewersfriend.com/beer-priming-calculator/

Or this:

http://www.northernbrewer.com/priming-sugar-calculator/

 

Usually you use 2 cups of water for 5 gallons, so about a half cup of water for a gallon should work.

 

The key is to add just enough water to dissolve all the sugar. Otherwise the extra water might dilute your beer too much. Dissolving the sugar in a quarter cup of water for 1 gallon is fairly standard. Also, use the smallest pot you have for boiling. If there's too much surface area, you might boil off too much water.

 

@OldBrewer is right, but another point to make is that if your beer is a pint short of your intended 1-gallon batch, then boil the sugar in a pint of water so that you hit the mark for what the recipe is written. If your beer is already at one gallon, then boil the sugar in as little water as you can so that you don't go too far over the intended batch size. Keep in mind that this isn't rocket science, so if you're off a little, don't sweat it. Just don't scorch the sugar when boiling in a small amount of water.

 

A 1:1 ratio is a simple syrup in cooking. This is the maximum amount of water I'd use. I would try to use as little water as possible. and don't be afraid to boil it down a touch.

One gallon of beer would only be a few T of sugar, wouldn't it? You might be able to pull this off in a glass measuring cup and a microwave if you want.

 

You should really try to measure your priming sugar by weight and not volume. It is more accurate that way. Even a small variation can make a difference, especially with a 1 gallon batch size. Use an online calculator to figure out the desired weight.

Just enough water to dissolve the sugar is all that is needed. You want to boil to melt the sugar and also to drive off the oxygen present in the water.
Cheers.