The flavoring was medicinal tasting, especially the raspberry, I won't use that again. Honestly, it was hard to tell what flavor the seltzer was, due to trying to get the most flavor out of it. Luckily the syrup saved it and brought more of the blackberry forward, I used the brewers best...
I've made this using 4lbs of corn sugar to 5gals of tap water. Boil for 10 minutes(not a hard boil) cool to 70 degrees and pitched my yeast(can't remember what I used) and added a yeast energizer. It does take a few days for the fermentation to start and it usually ferments for 3 1/2 weeks. I...