I froze my grapes and berries whenever I had extra left when I would routine grocery shop. Mashed them, pressed them, and put it into a 1-gallon carboy. I put in 1.5 Campden tablets in. Rather be a little over sterilized then vice versa with the potential of them harboring any of the crap nearby...
I made an american wheat ale, splittet the batch in four parts after the primary and added different fruits in the secondarys. One part i didnt add anything so I could see how strong the impact of the fruits are. But now alle fruity beers are gushing.
My question is: how can I sterilize frozen...