I am brewing an imperial stout this weekend and I am planning to use 8oz of maltodextrin for 5 gallon batch.
A friend of mine had a kit last time which had a maltodextrin in it but with no instructions. Also, after googling it I didn't find a clear answer (brewers were using it during differently).
I was wondering, when should it be added? In the middle of the boil? Near or after the flame out? Should I just pour the powder in to the kettle or should I mix it with 2 cups of water like corn corn sugar before boiling?