Well I get that it would be half but do I just add water till at 5 once I add the other juice? I promise I'm not and idiot, just got off vacation and the head is a bit slow. Ha
So the product in question is https://www.homebrewsupply.com/vintner-s-best-blueberry-fruit-wine-base-1-gallon.html
Has anyone used this before? How would one use this product if you only need 2.5 gallons for a recipe? The other 2.5 will be another juice of a different fruit. For some reason...