Preservatives

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Cn anyone share experience using blueberry or something that contains elements like benzoat ( or preservetives)
My experience:
Bought juice without checking first, when all set in a batch the fermentation just wont start.
When I checked, there is benzoate.
The other batch using blueberry isn't starting too.
Does anyone have some experience like me? If yes, is there any way to fix it?

Try adding yeast each day until it starts. Best way to overpower preservatives is to re-use the yeast from a previous fermentation.