Well I use 1.5 kg per brew, that's for 40 pints of Scottish Heavy, and I would think most is turned into alcohol. I have tried using sugar replacements when making liqueur's, but it does not work, you would not believe how much sugar is used to make 6 bottles of liqueur at 20% proof. Not made any for some time now, it is a lot of work for 6 bottles, and the shop where I got the ingredients has closed.