Have you ever cut open a ripe avocado, only to watch it turn brown within minutes? That sudden change can spoil the look and taste of your favorite dishes, from salads to guacamole. Avocados are rich in healthy fats and nutrients, but they oxidize quickly when exposed to air, which causes the flesh to darken. Fortunately, keeping avocados fresh and green doesn’t require complicated tools or expensive products—just a few simple, natural tricks you can use right in your kitchen.

One effective method is storing avocado halves with slices of red onion, whose natural compounds help slow oxidation without touching the fruit. A squeeze of lemon or lime juice adds a protective layer of vitamin C, while a thin coating of olive oil creates a barrier against air. For short-term freshness, briefly soaking avocado halves in cold water can help, though it’s best used for quick preparation. Wrapping the avocado tightly and storing it in an airtight container, preferably with the pit intact, also reduces exposure to oxygen. With these easy techniques, you can extend the life of your avocados, reduce food waste, and enjoy their creamy texture and vibrant color longer. Sometimes, small kitchen habits make the biggest difference in keeping food fresh, flavorful, and ready to enjoy.