Deals & Steals on gifting made easy!

  • Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • GMA3: WYNTK
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2023 ABC News
  • Food

Can an onion help keep your avocado from turning brown? See how it works

VIDEO: Here’s how to keep your cut avocados perfectly green
0:45
Here’s how to keep your cut avocados perfectly green
ABCNews.com
PHOTO: Kelly McCarthy
ByKelly McCarthy
March 26, 2023, 3:59 am

When you cut into a perfectly ripe, vibrant green avocado but don't finish the fruit in one sitting, the last thing anyone wants is to watch it turn brown after putting it in the fridge.

Thankfully, cookbook author and recipe developer Nicole Keshishian Modic has found a solution.

Modic, who regularly tests viral food hacks, shared her favorite way to preserve avocados with "Good Morning America."

Editor’s Picks

Grab a vegetable peeler and make this easy, viral carrot ribbon salad

  • Apr 13, 2022

Reduce waste and reuse glass jars with this easy label removal hack

  • Jan 04, 2023

FDA warns against storing avocados in water as seen in viral social media hack

  • May 24, 2022

The KaleJunkie creator shared this air-tight trick using a sliced onion to stop the avocado's flesh from turning brown.

"The onion releases sulfur, which keeps your avocado green," she said, explaining the chemical reaction that halts the oxygen from interacting with the enzymes in an avocado.

VIDEO: Here’s how to keep your cut avocados perfectly green
0:45
Nicole Keshishian Modic of KaleJunkie shows us her trick to storing avocado halves.

After three days in the fridge, stored in a sealed glass container, Modic said her test avocado was "still perfectly green."

"Unlike the method where people were submerging half-eaten avocados into water as a method of preservation, this method doesn’t come with the risk of listeria," Modic said.

She added, "While you might taste a tiny tinge of onion, it’s definitely not overpowering and it's super subtle."

She suggested using that avocado "on a piece of toast, but maybe not if I'm making a batch of avocado brownies."

Modic added that another popular method to help slow the browning process, "squeezing a lemon over the [leftover] avocado half" was "also a good option." But, she explained, "It's never lasted a full three days without browning in the fridge ... same with the method of storing leftover avocado with a pit."

Editor's note: This was originally published on Feb. 6, 2023.

Related Topics
  • Food

Editor’s Picks

Grab a vegetable peeler and make this easy, viral carrot ribbon salad

  • Apr 13, 2022

Reduce waste and reuse glass jars with this easy label removal hack

  • Jan 04, 2023

FDA warns against storing avocados in water as seen in viral social media hack

  • May 24, 2022

Up Next in Food—

Panera Bread faces second wrongful death suit from caffeinated 'charged lemonade'

December 6, 2023

22 sets of twins tried both vegan and meat diets. Here's how their health fared

December 5, 2023

Celebrate the holidays with chef Bren Herrera's delicious lamb chops

December 5, 2023

What to know about McDonald's new changes to classic menu items

December 4, 2023

Shop Holiday Digital Deals

ABC will receive a commission for purchases made through these links.

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2023 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2023 ABC News