i know i can ues other fermentables like black treacle at the beginnig of a brew but somepeople reckon if its more of the flavour your after then do it when you are racking the beer, my question is if i wanted to add a bit of flavour would i mix it into the fv2 straight from the tin or should i boil it with some water let it cool and add to fv2? also how much to a 5 gallon batch, how long should i leave it in the fvs and would i still prime with sugar when i bottle? sorry for the barrage of questions.