Peeled and cut vegetables often darken quickly, losing their vibrant color and firm texture—making them far less appealing. Fortunately, I've relied on my grandmother's simple, time-tested trick for years to prevent this. It works every time, and I'm sharing it with you today.
The secret? A quick rinse in lightly vinegared water. Here's how:

1. Fill a large saucepan with cold water.
2. Add ¼ glass of white vinegar to the water.
3. Peel and cut your vegetables.
4. Soak them in the vinegar water for a few minutes.

Your peeled vegetables stay bright white and don't turn black. Plus, they remain firm longer for better meals.
Pro tip: You can also plunge them directly into a sink basin filled with the mixture—no extra container needed.
This vinegar rinse not only prevents browning but also washes away bacteria and pesticides, giving you cleaner, safer produce.