Originally Posted by Eves
Actually it is 10. Perhaps I need to be more clear:
10% * 5 = 0.5 <- right?
So 5 + .5 = 5.5 that means that the alcohol level increased from 5 to 5.5. Which is an increase of 10%. Now I know .5% doesn't seem like a big increase but when you consider that some people go out of their way to squeeze out a little more ABV without too much impact on their final product it would be nice to know what the true increase of priming is.
As for the Coopers carb drops I see no reason to believe they're lying about them adding .5% ABV. I just question whether or not the use of priming sugar or other brands of carb tabs also increase the ABV by that much.
Assuming that the Coopers Carb drops carbonate the beer the same amount as priming with sugar, the same alc % should be added surely? The Homebrew Book I read (was a good one) said priming adds 0.3% so perhaps it is more then ya think?
Reading the Coopers formula again... it doesn't state if the priming is using its drops or sugar. It recommends 180g sugar for the 23L or 6gal (us) batch.
And I guess knowing the EXACT % isn't overly important, but I like to know roughly for future batches I guess.