I'm looking to brew a cider kit but have found it may need a little sweetening, but I also like to have it carbonated. Will using Xylitol after bottling along with sugar produce both carbonation and sweetening? Can I add the xylitol for the primary fermentation without it causing problems, or will it need to be added just prior to bottling? How much Xylotil would be needed for mild sweetening for a 23L batch in your experiences? Thanks for any help.