Great recipe....did this last year and the keg disappeared in one party. One critique was that there was some tartness.
Question: I followed the latest recipe when I brewed it last year, using 6 cups of watermelon juice in the secondary. Of course, there was some additional fermentation when the juice was in the secondary, which I think led to some tartness in the final product. In order to get some of the sweetness back this year, could I add a few campden tablets to the secondary to kill off the yeast and retain the watermelon sweetness?
Has anyone tried this and what was your result?