If you’ve ever soaked strawberries in salt water and noticed tiny white “worms” coming out, you’re not alone—and it can be disturbing at first glance.
The good news is: these are not dangerous parasites, and your strawberries are still generally safe to eat.
Let’s break down what’s really happening.
What Are the “White Worms” in Strawberries?
The small white organisms sometimes seen in strawberries are actually larvae of the spotted wing drosophila (SWD), a type of fruit fly.
These insects lay eggs inside soft, ripening fruits such as:
- Strawberries
- Blueberries
- Raspberries
- Blackberries
Once the eggs hatch, the larvae grow inside the fruit. They are:
- Tiny (about 1–3 mm)
- White and translucent
- Harmless to humans
Why Salt Water Makes Them Appear
Soaking strawberries in salt water doesn’t create worms—it simply makes hidden larvae visible.
Salt water creates a hypertonic solution, which draws moisture out of the larvae through osmosis. This irritates them and causes them to leave the fruit and float or move in the water.
How to do it safely:
- Mix 1 teaspoon of salt per 4 cups of cold water
- Soak berries for 10–15 minutes
- Rinse thoroughly afterward
If larvae are present, you may see them emerge within minutes.
Are They Safe to Eat?
