Best way to implement blueberries?

[tankedhank]

I'm making a 5 gallon batch made from grape juice and concentrate but I have about a pound and a half of blueberries that I want to add. What's the best/easiest/safest way to do do? Thanks

 

[Honda88]

Are you wanting to add these pre fermentation or post fermentation?

 

[Sammyk]

Post fermentation make a fruit pack. If you add them during fermentation, you will not have much blueberry flavor.
One and a half pounds will not give much flavor for even a gallon so look for more while they are in season. Freeze them until you need them.