Ha! Too much worry over nothing.

I wouldn't have even rinsed them... just picked out leaves/stems, and into the freezer they'd go until time to make jelly or jam.

Did you SEE any worms? If you didn't, I'm betting there weren't any, And... besides, IF there were any 'worms' in there, they pose no danger to you or yourfamily, and you'd never see them after making jelly/jam.

Roll on... and don't worry.

Agreed, just make your jam and enjoy!

I never wash blackberries. It reduces the flavour imo. And soaking would utterly destroy them. I would rather use wild than store bought as I know they won't have any pesticides on them.....and they're free.

Hold the fort.

Going on 8 years now, the SWD fruit fly (spotted-wing drosophila) has been a concern in caneberries over much of the U.S. They can be found in cultivated garden berries and in wild berries.

https://blogs.cornell.edu/swd1/2014/05/21/where-is-swd-found/

Soaking berries to drive out larva is done with salt water. Freezing them will trap them internally in the fruit except for those who crawled to the surface before being frozen. They will likely be dead.

Store-bought berries should be fine. Farmer's market organic berries are suspect.

But lucky_p is on to something. After handling that many berries, you would have noticed the little sub-rice-sized worms. Did your sons notice any little fruit flies while picking? I would thaw a few ounces and mash them, looking for worms; you might be fine after all.

If worms are present, the only way I know to remove them is using a low-speed augur-type juicer. It will remove the skins, seeds, and nearly all the worms and leave you with a clean puree. Other methods would be very tedious.

Rinsing or soaking blackberries dilutes the product by adding water and removing juice.

Even if there are SWD larvae - and the Logician is right, they're tiny - psst...don't tell anyone you saw them... they'll never know they were there once you've made your jam or jelly.