I have a wheat bubbling a way and plan on adding some passion fruit juice to the secondary tomorrow. My thoughts were to boil any fresh fruit or fresh juice that I add, just to get the nasties out.
The first time I did this with a partial raspberry and blueberry ale. I just tossed the thawed berries in the mix doing nothing to them. I caught a nasty infections while doing so.
I know you can youse those canned juices but I had the real deal lying around and did not want to ruin my beer. I have read to boil it in water or boil the fresh juice for like 2 minutes and let her cool down.