So I'm still trying to figure out what has occurred that is causing issues with my beer.
I've never had an issues with exploding beers so I'm almost positive this is related directly to the use of fresh fruit.
The things I have come up with that could be the issue are...
The extra sugars from the strawberries that were put in secondary plus the priming sugar causing the beer to become way over carbonated. There really isn't any yeast to cause fermentation in the secondary at this point so is it possible that there is no much sugar in the bottles causing the massive amount of carbonation/exploding.
or, I used frozen berries but I only thawed them out and then put them in the secondary. Since frozen berries are "flash frozen" is it possible that the cell structure didn't break down on the berries enough and is causing a problem. And if so should I have thawed them out, and refroze them in the freezer slowly before using them.
Any thoughts would be greatly appreciated, the beer was fantastic and its a bummer to have lost half the batch. I want to make it again but i would prefer to avoid the same issue