New kombucha brewer here!

With my first batch I did a second ferment ... three bottles total (I used
these from Ikea), one with a little cranberry juice, one with a little cherry juice and one with some frozen raspberries.
I found the ones with juice to be a little too sweet (to be fair, I used 2 c sugar to 3 qts water to brew my kombucha, which I think was too much). But the bottle with the raspberries was delicious!!!

It was so much fizzier than the other two as well ... I think the fruit made it ferment a lot more than the juices did.
So here's my question ... I let the second ferment go for 5 days in the pantry, then moved the bottles to the fridge. Once in the fridge, it took about a week for me to drink all three bottles. At what point do I need to worry about the fruit going bad, if at all? I have my second batch going now, and I did all raspberries because I loved it so much! I'm just wondering if I need to strain the fruit out, or if it will be okay in there for a while.
Thanks!
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