Seeing tiny worms emerge from berries can be unpleasant, but it’s usually caused by fruit fly larvae and doesn’t necessarily mean the fruit is unsafe. Whether you choose to keep or discard the berries depends mostly on your comfort level.
Sometimes a simple rinse reveals what nature has quietly hidden inside fresh fruit. 
If you’ve soaked fresh berries in salt water and noticed tiny white, wiggling worms coming out, it can be shocking. But this situation is more common than many people realize. The small creatures are usually fruit fly larvae that sometimes develop inside soft fruits.
What Are Those Tiny White Worms?In many cases, the worms are larvae from the Spotted Wing Drosophila, a type of fruit fly that lays eggs inside ripe fruits like strawberries, raspberries, or blackberries.
The eggs hatch into tiny larvae that can remain inside the fruit until it is washed or soaked.
Why Salt Water Makes Them Come OutWhen berries are soaked in salt water, the larvae react to the salty environment and wriggle out of the fruit. This makes them visible even though they were already present before washing.
