The Best and Safest Way to Store Avocados and Prevent Them From Browning

Avocados are a popular fruit known for their creamy texture and numerous health benefits. However, storing avocados can be a challenge, as they tend to brown easily when exposed to air. While there are various methods suggested to prevent browning, it is essential to be aware of the best and safest ways to store avocados. There are right ways, wrong ways, and less safe ways to store avocados, so let’s have a look at which ways are both effective at preventing browning and keeping your avocados safe to eat.

The Risky Method: Storing Avocados in Water

One method that gained popularity through social media platforms like TikTok involved storing whole or cut avocados in water to keep them fresh for longer. The idea behind this method is to slow down the oxidation process, which is responsible for avocados turning brown when exposed to air. It works by placing the avocado in a container with water and then placing it in the refrigerator. The water acts as a barrier between the air and the avocado, preventing oxidation from occurring. This method is also said to help keep avocados fresh for up to two weeks. However, the U.S. Food and Drug Administration (FDA) has warned against this practice due to potential health risks. (1)

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The Health Risks of Storing Avocados in Water

So what makes this method so controversial? While storing avocados in water may preserve their freshness and flavor for some time, it can also expose you to foodborne illnesses. Residual human pathogens, such as Listeria monocytogenes and salmonella, that may be present on the avocado’s surface can multiply when submerged in water. Studies conducted by the FDA found traces of these bacteria on avocado skins, and the potential for contamination exists even in whole, uncut avocados. Consuming contaminated avocados can lead to severe illness and pose a particular risk to pregnant women, newborns, and older adults. (2)

Safe Ways to Store Avocados and Prevent Browning

So, if this effective but unsafe water method is a no-go, what can you do to prevent your avocados from browning? Besides eating the whole avocado in one sitting, which may or may not be the best choice for you, there are several other ways to keep your avocados fresh for use in the coming days. 

1. Proper Storage Conditions

• Avocados should be stored on the counter until ripe, and once ripe, they can be refrigerated to extend their shelf life by a day or two.
• It is recommended to rinse whole avocados under running water, scrub them to remove any dirt or bacteria, and then dry them with a clean towel before storage.

2. Use Citric Acid

• When you cut open an avocado and don’t plan to use the whole fruit immediately, squeeze some lemon or lime juice onto the exposed surface.
• The citric acid present in these fruits slows down the oxidation process and helps keep avocados fresh for longer.

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3. Plastic Wrap

• Wrap the cut avocado tightly with plastic wrap, ensuring there is no air exposure. This can help preserve its freshness and prevent browning.

4. Freezing

• Freezing avocados is another method to prolong their shelf life and prevent bacterial growth.
• Quarter the avocados, remove the skin, and place them in a resealable plastic bag. Add a little lemon or lime juice to prevent browning.
• Note that freezing may slightly change the texture of avocados, so they are best used in smoothies or blended recipes.

5. Guacamole Preservation

• To prevent guacamole from browning, drizzle lime juice on top and directly cover it with plastic wrap, ensuring minimal air exposure.
• Alternatively, store guacamole in gallon-size bags, flattening the guacamole within the bag to minimize air contact.

The Bottom Line

While the appeal of storing avocados in water to prevent browning may seem tempting, it is crucial to prioritize food safety. The FDA warns against this practice due to the risk of microbial contamination. To safely store avocados and prevent browning, follow expert-approved methods such as proper storage conditions, using citric acid, plastic wrap, freezing, and preserving guacamole properly. By employing these methods, you can enjoy fresh and visually appealing avocados without compromising your health.

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