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🥑 Homemade Trick! How to Keep Avocado from Turning Black and Keep It Fresh

Avocados are one of nature’s most delicious and nutritious superfoods—but they have one big flaw: they turn brown way too fast once cut. If you’ve ever sliced into a perfectly ripe avocado only to have it turn black and mushy within hours, you’re not alone.

Luckily, there’s a simple homemade trick that actually works to keep your avocado green, fresh, and ready to enjoy for days!

🧪 Why Do Avocados Turn Brown?

When you cut into an avocado, its flesh is exposed to oxygen in the air. This triggers a natural process called enzymatic browning, where enzymes in the fruit react with oxygen and cause that unappetizing dark color.

The good news? Browning doesn’t mean it’s gone bad—but let’s be honest, brown avocado isn’t exactly appealing.

✅ The Homemade Trick: Onion + Airtight Container

One of the most effective and surprising ways to keep avocados fresh is using something already in your kitchen: a red onion.

Here’s how to do it:

Slice a red onion into large chunks or rings.
Place the onion pieces at the bottom of an airtight container.
Place your cut avocado (pit still in) skin-side down on top of the onions.
Seal the container tightly and store it in the fridge.

Why It Works:

Red onions release sulfur compounds—the same ones that make your eyes water—which slow down the oxidation process in avocados without altering the flavor.

🥄 Other Proven Methods to Keep Avocados Fresh

1. Lemon or Lime Juice

Citrus juice is acidic and contains antioxidants that prevent browning.

Simply brush or squeeze a small amount over the exposed avocado flesh.
Store in an airtight container in the fridge.
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